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author | Jeff Garzik <jeff@garzik.org> | 2006-04-26 06:15:27 -0400 |
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committer | Jeff Garzik <jeff@garzik.org> | 2006-04-26 06:15:27 -0400 |
commit | 25f73891c3059e9ce6ff0a02670aa98baf6cbce9 (patch) | |
tree | 18a2ef934aa353ca695c3faaa3b7497fea22037a /drivers | |
parent | fef6108d4556917c45cd9ba397c1c7597f3990e1 (diff) | |
parent | 4d5c34ec7b007cfb0771a36996b009f194acbb2f (diff) | |
download | linux-3.10-25f73891c3059e9ce6ff0a02670aa98baf6cbce9.tar.gz linux-3.10-25f73891c3059e9ce6ff0a02670aa98baf6cbce9.tar.bz2 linux-3.10-25f73891c3059e9ce6ff0a02670aa98baf6cbce9.zip |
Merge branch 'master' into upstream-fixes
Diffstat (limited to 'drivers')
32 files changed, 1938 insertions, 553 deletions
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index e1aadae0062..cb76e5ca9a2 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -889,7 +889,6 @@ extern int drm_lock_free(drm_device_t * dev, /* Buffer management support (drm_bufs.h) */ extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request); extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request); -extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request); extern int drm_addmap(drm_device_t * dev, unsigned int offset, unsigned int size, drm_map_type_t type, drm_map_flags_t flags, drm_local_map_t ** map_ptr); diff --git a/drivers/char/drm/drm_agpsupport.c b/drivers/char/drm/drm_agpsupport.c index fabc930c67a..40bfd9b01e3 100644 --- a/drivers/char/drm/drm_agpsupport.c +++ b/drivers/char/drm/drm_agpsupport.c @@ -503,8 +503,6 @@ int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start) return agp_bind_memory(handle, start); } -EXPORT_SYMBOL(drm_agp_bind_memory); - /** Calls agp_unbind_memory() */ int drm_agp_unbind_memory(DRM_AGP_MEM * handle) { diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c index 8a9cf12e618..006b06d2972 100644 --- a/drivers/char/drm/drm_bufs.c +++ b/drivers/char/drm/drm_bufs.c @@ -386,7 +386,6 @@ int drm_rmmap_locked(drm_device_t *dev, drm_local_map_t *map) return 0; } -EXPORT_SYMBOL(drm_rmmap_locked); int drm_rmmap(drm_device_t *dev, drm_local_map_t *map) { @@ -398,7 +397,6 @@ int drm_rmmap(drm_device_t *dev, drm_local_map_t *map) return ret; } -EXPORT_SYMBOL(drm_rmmap); /* The rmmap ioctl appears to be unnecessary. All mappings are torn down on * the last close of the device, and this is necessary for cleanup when things @@ -1053,7 +1051,7 @@ static int drm_addbufs_sg(drm_device_t * dev, drm_buf_desc_t * request) return 0; } -int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) +static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) { drm_device_dma_t *dma = dev->dma; drm_buf_entry_t *entry; @@ -1212,7 +1210,6 @@ int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request) atomic_dec(&dev->buf_alloc); return 0; } -EXPORT_SYMBOL(drm_addbufs_fb); /** diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c index 68073e14fde..9a842a36bb2 100644 --- a/drivers/char/drm/drm_stub.c +++ b/drivers/char/drm/drm_stub.c @@ -229,8 +229,6 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, return ret; } -EXPORT_SYMBOL(drm_get_dev); - /** * Put a device minor number. * diff --git a/drivers/char/drm/r300_cmdbuf.c b/drivers/char/drm/r300_cmdbuf.c index b108c7f913b..26bdf2ca59d 100644 --- a/drivers/char/drm/r300_cmdbuf.c +++ b/drivers/char/drm/r300_cmdbuf.c @@ -723,7 +723,7 @@ static int r300_scratch(drm_radeon_private_t *dev_priv, dev_priv->scratch_ages[header.scratch.reg]++; - ref_age_base = *(u32 **)cmdbuf->buf; + ref_age_base = (u32 *)(unsigned long)*((uint64_t *)cmdbuf->buf); cmdbuf->buf += sizeof(u64); cmdbuf->bufsz -= sizeof(u64); diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index b543821d8cb..56c8243cdb7 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -390,7 +390,8 @@ scdrv_init(void) format_module_id(devnamep, geo_module(geoid), MODULE_FORMAT_BRIEF); devnamep = devname + strlen(devname); - sprintf(devnamep, "#%d", geo_slab(geoid)); + sprintf(devnamep, "^%d#%d", geo_slot(geoid), + geo_slab(geoid)); /* allocate sysctl device data */ scd = kzalloc(sizeof (struct sysctl_data_s), diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index a6873bf89ff..1efde3b2761 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -20,9 +20,18 @@ config TCG_TPM Note: For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI and CONFIG_PNPACPI. +config TCG_TIS + tristate "TPM Interface Specification 1.2 Interface" + depends on TCG_TPM + ---help--- + If you have a TPM security chip that is compliant with the + TCG TIS 1.2 TPM specification say Yes and it will be accessible + from within Linux. To compile this driver as a module, choose + M here; the module will be called tpm_tis. + config TCG_NSC tristate "National Semiconductor TPM Interface" - depends on TCG_TPM + depends on TCG_TPM && PNPACPI ---help--- If you have a TPM security chip from National Semicondutor say Yes and it will be accessible from within Linux. To diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile index ba4582d160f..ea3a1e02a82 100644 --- a/drivers/char/tpm/Makefile +++ b/drivers/char/tpm/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_TCG_TPM) += tpm.o ifdef CONFIG_ACPI obj-$(CONFIG_TCG_TPM) += tpm_bios.o endif +obj-$(CONFIG_TCG_TIS) += tpm_tis.o obj-$(CONFIG_TCG_NSC) += tpm_nsc.o obj-$(CONFIG_TCG_ATMEL) += tpm_atmel.o obj-$(CONFIG_TCG_INFINEON) += tpm_infineon.o diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 5a3870477ef..6889e7db3af 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -32,12 +32,291 @@ enum tpm_const { TPM_MINOR = 224, /* officially assigned */ TPM_BUFSIZE = 2048, TPM_NUM_DEVICES = 256, - TPM_NUM_MASK_ENTRIES = TPM_NUM_DEVICES / (8 * sizeof(int)) }; +enum tpm_duration { + TPM_SHORT = 0, + TPM_MEDIUM = 1, + TPM_LONG = 2, + TPM_UNDEFINED, +}; + +#define TPM_MAX_ORDINAL 243 +#define TPM_MAX_PROTECTED_ORDINAL 12 +#define TPM_PROTECTED_ORDINAL_MASK 0xFF + static LIST_HEAD(tpm_chip_list); static DEFINE_SPINLOCK(driver_lock); -static int dev_mask[TPM_NUM_MASK_ENTRIES]; +static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES); + +/* + * Array with one entry per ordinal defining the maximum amount + * of time the chip could take to return the result. The ordinal + * designation of short, medium or long is defined in a table in + * TCG Specification TPM Main Part 2 TPM Structures Section 17. The + * values of the SHORT, MEDIUM, and LONG durations are retrieved + * from the chip during initialization with a call to tpm_get_timeouts. + */ +static const u8 tpm_protected_ordinal_duration[TPM_MAX_PROTECTED_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, +}; + +static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = { + TPM_UNDEFINED, /* 0 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 5 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 10 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_LONG, + TPM_MEDIUM, /* 15 */ + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, /* 20 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, /* 25 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 30 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 35 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 40 */ + TPM_LONG, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 45 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_LONG, + TPM_MEDIUM, /* 50 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 55 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 60 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 65 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 70 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 75 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 80 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_LONG, + TPM_SHORT, + TPM_UNDEFINED, /* 85 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 90 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 95 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 100 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 105 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 110 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 115 */ + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 120 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 125 */ + TPM_SHORT, + TPM_LONG, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, /* 130 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_SHORT, + TPM_MEDIUM, + TPM_UNDEFINED, /* 135 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 140 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 145 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 150 */ + TPM_MEDIUM, + TPM_MEDIUM, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 155 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 160 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 165 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_LONG, /* 170 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 175 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_MEDIUM, /* 180 */ + TPM_SHORT, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, /* 185 */ + TPM_SHORT, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 190 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 195 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 200 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 205 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_MEDIUM, /* 210 */ + TPM_UNDEFINED, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_MEDIUM, + TPM_UNDEFINED, /* 215 */ + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, + TPM_SHORT, /* 220 */ + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_SHORT, + TPM_UNDEFINED, /* 225 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 230 */ + TPM_LONG, + TPM_MEDIUM, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, /* 235 */ + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_UNDEFINED, + TPM_SHORT, /* 240 */ + TPM_UNDEFINED, + TPM_MEDIUM, +}; static void user_reader_timeout(unsigned long ptr) { @@ -46,7 +325,7 @@ static void user_reader_timeout(unsigned long ptr) schedule_work(&chip->work); } -static void timeout_work(void * ptr) +static void timeout_work(void *ptr) { struct tpm_chip *chip = ptr; @@ -57,17 +336,43 @@ static void timeout_work(void * ptr) } /* + * Returns max number of jiffies to wait + */ +unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, + u32 ordinal) +{ + int duration_idx = TPM_UNDEFINED; + int duration = 0; + + if (ordinal < TPM_MAX_ORDINAL) + duration_idx = tpm_ordinal_duration[ordinal]; + else if ((ordinal & TPM_PROTECTED_ORDINAL_MASK) < + TPM_MAX_PROTECTED_ORDINAL) + duration_idx = + tpm_protected_ordinal_duration[ordinal & + TPM_PROTECTED_ORDINAL_MASK]; + + if (duration_idx != TPM_UNDEFINED) + duration = chip->vendor.duration[duration_idx]; + if (duration <= 0) + return 2 * 60 * HZ; + else + return duration; +} +EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration); + +/* * Internal kernel interface to transmit TPM commands */ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, size_t bufsiz) { ssize_t rc; - u32 count; + u32 count, ordinal; unsigned long stop; count = be32_to_cpu(*((__be32 *) (buf + 2))); - + ordinal = be32_to_cpu(*((__be32 *) (buf + 6))); if (count == 0) return -ENODATA; if (count > bufsiz) { @@ -78,21 +383,23 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, down(&chip->tpm_mutex); - if ((rc = chip->vendor->send(chip, (u8 *) buf, count)) < 0) { + if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) { dev_err(chip->dev, "tpm_transmit: tpm_send: error %zd\n", rc); goto out; } - stop = jiffies + 2 * 60 * HZ; + if (chip->vendor.irq) + goto out_recv; + + stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal); do { - u8 status = chip->vendor->status(chip); - if ((status & chip->vendor->req_complete_mask) == - chip->vendor->req_complete_val) { + u8 status = chip->vendor.status(chip); + if ((status & chip->vendor.req_complete_mask) == + chip->vendor.req_complete_val) goto out_recv; - } - if ((status == chip->vendor->req_canceled)) { + if ((status == chip->vendor.req_canceled)) { dev_err(chip->dev, "Operation Canceled\n"); rc = -ECANCELED; goto out; @@ -102,14 +409,13 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, rmb(); } while (time_before(jiffies, stop)); - - chip->vendor->cancel(chip); + chip->vendor.cancel(chip); dev_err(chip->dev, "Operation Timed out\n"); rc = -ETIME; goto out; out_recv: - rc = chip->vendor->recv(chip, (u8 *) buf, bufsiz); + rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz); if (rc < 0) dev_err(chip->dev, "tpm_transmit: tpm_recv: error %zd\n", rc); @@ -119,17 +425,247 @@ out: } #define TPM_DIGEST_SIZE 20 -#define CAP_PCR_RESULT_SIZE 18 -static const u8 cap_pcr[] = { +#define TPM_ERROR_SIZE 10 +#define TPM_RET_CODE_IDX 6 +#define TPM_GET_CAP_RET_SIZE_IDX 10 +#define TPM_GET_CAP_RET_UINT32_1_IDX 14 +#define TPM_GET_CAP_RET_UINT32_2_IDX 18 +#define TPM_GET_CAP_RET_UINT32_3_IDX 22 +#define TPM_GET_CAP_RET_UINT32_4_IDX 26 +#define TPM_GET_CAP_PERM_DISABLE_IDX 16 +#define TPM_GET_CAP_PERM_INACTIVE_IDX 18 +#define TPM_GET_CAP_RET_BOOL_1_IDX 14 +#define TPM_GET_CAP_TEMP_INACTIVE_IDX 16 + +#define TPM_CAP_IDX 13 +#define TPM_CAP_SUBCAP_IDX 21 + +enum tpm_capabilities { + TPM_CAP_FLAG = 4, + TPM_CAP_PROP = 5, +}; + +enum tpm_sub_capabilities { + TPM_CAP_PROP_PCR = 0x1, + TPM_CAP_PROP_MANUFACTURER = 0x3, + TPM_CAP_FLAG_PERM = 0x8, + TPM_CAP_FLAG_VOL = 0x9, + TPM_CAP_PROP_OWNER = 0x11, + TPM_CAP_PROP_TIS_TIMEOUT = 0x15, + TPM_CAP_PROP_TIS_DURATION = 0x20, +}; + +/* + * This is a semi generic GetCapability command for use + * with the capability type TPM_CAP_PROP or TPM_CAP_FLAG + * and their associated sub_capabilities. + */ + +static const u8 tpm_cap[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 22, /* length */ 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 5, - 0, 0, 0, 4, - 0, 0, 1, 1 + 0, 0, 0, 0, /* TPM_CAP_<TYPE> */ + 0, 0, 0, 4, /* TPM_CAP_SUB_<TYPE> size */ + 0, 0, 1, 0 /* TPM_CAP_SUB_<TYPE> */ }; -#define READ_PCR_RESULT_SIZE 30 +static ssize_t transmit_cmd(struct tpm_chip *chip, u8 *data, int len, + char *desc) +{ + int err; + + len = tpm_transmit(chip, data, len); + if (len < 0) + return len; + if (len == TPM_ERROR_SIZE) { + err = be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))); + dev_dbg(chip->dev, "A TPM error (%d) occurred %s\n", err, desc); + return err; + } + return 0; +} + +void tpm_gen_interrupt(struct tpm_chip *chip) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)]; + ssize_t rc; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the timeouts"); +} +EXPORT_SYMBOL_GPL(tpm_gen_interrupt); + +void tpm_get_timeouts(struct tpm_chip *chip) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)]; + ssize_t rc; + u32 timeout; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the timeouts"); + if (rc) + goto duration; + + if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX))) + != 4 * sizeof(u32)) + goto duration; + + /* Don't overwrite default if value is 0 */ + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))); + if (timeout) + chip->vendor.timeout_a = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX))); + if (timeout) + chip->vendor.timeout_b = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX))); + if (timeout) + chip->vendor.timeout_c = msecs_to_jiffies(timeout); + timeout = + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX))); + if (timeout) + chip->vendor.timeout_d = msecs_to_jiffies(timeout); + +duration: + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_DURATION; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the durations"); + if (rc) + return; + + if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX))) + != 3 * sizeof(u32)) + return; + + chip->vendor.duration[TPM_SHORT] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_1_IDX)))); + chip->vendor.duration[TPM_MEDIUM] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_2_IDX)))); + chip->vendor.duration[TPM_LONG] = + msecs_to_jiffies(be32_to_cpu + (*((__be32 *) (data + + TPM_GET_CAP_RET_UINT32_3_IDX)))); +} +EXPORT_SYMBOL_GPL(tpm_get_timeouts); + +void tpm_continue_selftest(struct tpm_chip *chip) +{ + u8 data[] = { + 0, 193, /* TPM_TAG_RQU_COMMAND */ + 0, 0, 0, 10, /* length */ + 0, 0, 0, 83, /* TPM_ORD_GetCapability */ + }; + + tpm_transmit(chip, data, sizeof(data)); +} +EXPORT_SYMBOL_GPL(tpm_continue_selftest); + +ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; + + rc = transmit_cmd(chip, data, sizeof(data), + "attemtping to determine the permanent state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_enabled); + +ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; + + rc = transmit_cmd(chip, data, sizeof(data), + "attemtping to determine the permanent state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_active); + +ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr, + char *buf) +{ + u8 data[sizeof(tpm_cap)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the owner state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_owned); + +ssize_t tpm_show_temp_deactivated(struct device * dev, + struct device_attribute * attr, char *buf) +{ + u8 data[sizeof(tpm_cap)]; + ssize_t rc; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_FLAG; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the temporary state"); + if (rc) + return 0; + return sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]); +} +EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated); + static const u8 pcrread[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 14, /* length */ @@ -140,8 +676,8 @@ static const u8 pcrread[] = { ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[READ_PCR_RESULT_SIZE]; - ssize_t len; + u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(pcrread)), 30)]; + ssize_t rc; int i, j, num_pcrs; __be32 index; char *str = buf; @@ -150,29 +686,24 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, if (chip == NULL) return -ENODEV; - memcpy(data, cap_pcr, sizeof(cap_pcr)); - if ((len = tpm_transmit(chip, data, sizeof(data))) - < CAP_PCR_RESULT_SIZE) { - dev_dbg(chip->dev, "A TPM error (%d) occurred " - "attempting to determine the number of PCRS\n", - be32_to_cpu(*((__be32 *) (data + 6)))); + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR; + + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the number of PCRS"); + if (rc) return 0; - } num_pcrs = be32_to_cpu(*((__be32 *) (data + 14))); - for (i = 0; i < num_pcrs; i++) { memcpy(data, pcrread, sizeof(pcrread)); index = cpu_to_be32(i); memcpy(data + 10, &index, 4); - if ((len = tpm_transmit(chip, data, sizeof(data))) - < READ_PCR_RESULT_SIZE){ - dev_dbg(chip->dev, "A TPM error (%d) occurred" - " attempting to read PCR %d of %d\n", - be32_to_cpu(*((__be32 *) (data + 6))), - i, num_pcrs); + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to read a PCR"); + if (rc) goto out; - } str += sprintf(str, "PCR-%02d: ", i); for (j = 0; j < TPM_DIGEST_SIZE; j++) str += sprintf(str, "%02X ", *(data + 10 + j)); @@ -194,7 +725,7 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, char *buf) { u8 *data; - ssize_t len; + ssize_t err; int i, rc; char *str = buf; @@ -208,14 +739,10 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, memcpy(data, readpubek, sizeof(readpubek)); - if ((len = tpm_transmit(chip, data, READ_PUBEK_RESULT_SIZE)) < - READ_PUBEK_RESULT_SIZE) { - dev_dbg(chip->dev, "A TPM error (%d) occurred " - "attempting to read the PUBEK\n", - be32_to_cpu(*((__be32 *) (data + 6)))); - rc = 0; + err = transmit_cmd(chip, data, READ_PUBEK_RESULT_SIZE, + "attempting to read the PUBEK"); + if (err) goto out; - } /* ignore header 10 bytes @@ -245,67 +772,110 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, if ((i + 1) % 16 == 0) str += sprintf(str, "\n"); } - rc = str - buf; out: + rc = str - buf; kfree(data); return rc; } EXPORT_SYMBOL_GPL(tpm_show_pubek); -#define CAP_VER_RESULT_SIZE 18 +#define CAP_VERSION_1_1 6 +#define CAP_VERSION_1_2 0x1A +#define CAP_VERSION_IDX 13 static const u8 cap_version[] = { 0, 193, /* TPM_TAG_RQU_COMMAND */ 0, 0, 0, 18, /* length */ 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 6, + 0, 0, 0, 0, 0, 0, 0, 0 }; -#define CAP_MANUFACTURER_RESULT_SIZE 18 -static const u8 cap_manufacturer[] = { - 0, 193, /* TPM_TAG_RQU_COMMAND */ - 0, 0, 0, 22, /* length */ - 0, 0, 0, 101, /* TPM_ORD_GetCapability */ - 0, 0, 0, 5, - 0, 0, 0, 4, - 0, 0, 1, 3 -}; - ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[sizeof(cap_manufacturer)]; - ssize_t len; + u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)), 30)]; + ssize_t rc; char *str = buf; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; - memcpy(data, cap_manufacturer, sizeof(cap_manufacturer)); + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER; - if ((len = tpm_transmit(chip, data, sizeof(data))) < - CAP_MANUFACTURER_RESULT_SIZE) - return len; + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the manufacturer"); + if (rc) + return 0; str += sprintf(str, "Manufacturer: 0x%x\n", - be32_to_cpu(*((__be32 *) (data + 14)))); + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)))); memcpy(data, cap_version, sizeof(cap_version)); + data[CAP_VERSION_IDX] = CAP_VERSION_1_1; + rc = transmit_cmd(chip, data, sizeof(data), + "attempting to determine the 1.1 version"); + if (rc) + goto out; - if ((len = tpm_transmit(chip, data, sizeof(data))) < - CAP_VER_RESULT_SIZE) - return len; - - str += - sprintf(str, "TCG version: %d.%d\nFirmware version: %d.%d\n", - (int) data[14], (int) data[15], (int) data[16], - (int) data[17]); + str += sprintf(str, + "TCG version: %d.%d\nFirmware version: %d.%d\n", + (int) data[14], (int) data[15], (int) data[16], + (int) data[17]); +out: return str - buf; } EXPORT_SYMBOL_GPL(tpm_show_caps); +ssize_t tpm_show_caps_1_2(struct device * dev, + struct device_attribute * attr, char *buf) +{ + u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)), 30)]; + ssize_t len; + char *str = buf; + + struct tpm_chip *chip = dev_get_drvdata(dev); + if (chip == NULL) + return -ENODEV; + + memcpy(data, tpm_cap, sizeof(tpm_cap)); + data[TPM_CAP_IDX] = TPM_CAP_PROP; + data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER; + + if ((len = tpm_transmit(chip, data, sizeof(data))) <= + TPM_ERROR_SIZE) { + dev_dbg(chip->dev, "A TPM error (%d) occurred " + "attempting to determine the manufacturer\n", + be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)))); + return 0; + } + + str += sprintf(str, "Manufacturer: 0x%x\n", + be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)))); + + memcpy(data, cap_version, sizeof(cap_version)); + data[CAP_VERSION_IDX] = CAP_VERSION_1_2; + + if ((len = tpm_transmit(chip, data, sizeof(data))) <= + TPM_ERROR_SIZE) { + dev_err(chip->dev, "A TPM error (%d) occurred " + "attempting to determine the 1.2 version\n", + be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)))); + goto out; + } + str += sprintf(str, + "TCG version: %d.%d\nFirmware version: %d.%d\n", + (int) data[16], (int) data[17], (int) data[18], + (int) data[19]); + +out: + return str - buf; +} +EXPORT_SYMBOL_GPL(tpm_show_caps_1_2); + ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -313,7 +883,7 @@ ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr, if (chip == NULL) return 0; - chip->vendor->cancel(chip); + chip->vendor.cancel(chip); return count; } EXPORT_SYMBOL_GPL(tpm_store_cancel); @@ -329,7 +899,7 @@ int tpm_open(struct inode *inode, struct file *file) spin_lock(&driver_lock); list_for_each_entry(pos, &tpm_chip_list, list) { - if (pos->vendor->miscdev.minor == minor) { + if (pos->vendor.miscdev.minor == minor) { chip = pos; break; } @@ -387,7 +957,7 @@ int tpm_release(struct inode *inode, struct file *file) EXPORT_SYMBOL_GPL(tpm_release); ssize_t tpm_write(struct file *file, const char __user *buf, - size_t size, loff_t * off) + size_t size, loff_t *off) { struct tpm_chip *chip = file->private_data; int in_size = size, out_size; @@ -419,11 +989,10 @@ ssize_t tpm_write(struct file *file, const char __user *buf, return in_size; } - EXPORT_SYMBOL_GPL(tpm_write); -ssize_t tpm_read(struct file * file, char __user *buf, - size_t size, loff_t * off) +ssize_t tpm_read(struct file *file, char __user *buf, + size_t size, loff_t *off) { struct tpm_chip *chip = file->private_data; int ret_size; @@ -462,14 +1031,13 @@ void tpm_remove_hardware(struct device *dev) spin_unlock(&driver_lock); dev_set_drvdata(dev, NULL); - misc_deregister(&chip->vendor->miscdev); - kfree(chip->vendor->miscdev.name); + misc_deregister(&chip->vendor.miscdev); + kfree(chip->vendor.miscdev.name); - sysfs_remove_group(&dev->kobj, chip->vendor->attr_group); + sysfs_remove_group(&dev->kobj, chip->vendor.attr_group); tpm_bios_log_teardown(chip->bios_dir); - dev_mask[chip->dev_num / TPM_NUM_MASK_ENTRIES ] &= - ~(1 << (chip->dev_num % TPM_NUM_MASK_ENTRIES)); + clear_bit(chip->dev_num, dev_mask); kfree(chip); @@ -520,18 +1088,18 @@ EXPORT_SYMBOL_GPL(tpm_pm_resume); * upon errant exit from this function specific probe function should call * pci_disable_device */ -int tpm_register_hardware(struct device *dev, struct tpm_vendor_specific *entry) +struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vendor_specific + *entry) { #define DEVNAME_SIZE 7 char *devname; struct tpm_chip *chip; - int i, j; /* Driver specific per-device data */ chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) - return -ENOMEM; + return NULL; init_MUTEX(&chip->buffer_mutex); init_MUTEX(&chip->tpm_mutex); @@ -543,45 +1111,37 @@ int tpm_register_hardware(struct device *dev, struct tpm_vendor_specific *entry) chip->user_read_timer.function = user_reader_timeout; chip->user_read_timer.data = (unsigned long) chip; - chip->vendor = entry; - - chip->dev_num = -1; + memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific)); - for (i = 0; i < TPM_NUM_MASK_ENTRIES; i++) - for (j = 0; j < 8 * sizeof(int); j++) - if ((dev_mask[i] & (1 << j)) == 0) { - chip->dev_num = - i * TPM_NUM_MASK_ENTRIES + j; - dev_mask[i] |= 1 << j; - goto dev_num_search_complete; - } + chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES); -dev_num_search_complete: - if (chip->dev_num < 0) { + if (chip->dev_num >= TPM_NUM_DEVICES) { dev_err(dev, "No available tpm device numbers\n"); kfree(chip); - return -ENODEV; + return NULL; } else if (chip->dev_num == 0) - chip->vendor->miscdev.minor = TPM_MINOR; + chip->vendor.miscdev.minor = TPM_MINOR; else - chip->vendor->miscdev.minor = MISC_DYNAMIC_MINOR; + chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR; + + set_bit(chip->dev_num, dev_mask); devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL); scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num); - chip->vendor->miscdev.name = devname; + chip->vendor.miscdev.name = devname; - chip->vendor->miscdev.dev = dev; + chip->vendor.miscdev.dev = dev; chip->dev = get_device(dev); - if (misc_register(&chip->vendor->miscdev)) { + if (misc_register(&chip->vendor.miscdev)) { dev_err(chip->dev, "unable to misc_register %s, minor %d\n", - chip->vendor->miscdev.name, - chip->vendor->miscdev.minor); + chip->vendor.miscdev.name, + chip->vendor.miscdev.minor); put_device(dev); + clear_bit(chip->dev_num, dev_mask); kfree(chip); - dev_mask[i] &= !(1 << j); - return -ENODEV; + return NULL; } spin_lock(&driver_lock); @@ -592,11 +1152,11 @@ dev_num_search_complete: spin_unlock(&driver_lock); - sysfs_create_group(&dev->kobj, chip->vendor->attr_group); + sysfs_create_group(&dev->kobj, chip->vendor.attr_group); chip->bios_dir = tpm_bios_log_setup(devname); - return 0; + return chip; } EXPORT_SYMBOL_GPL(tpm_register_hardware); diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index dec0224b447..54a4c804e25 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -42,18 +42,30 @@ extern ssize_t tpm_show_pcrs(struct device *, struct device_attribute *attr, char *); extern ssize_t tpm_show_caps(struct device *, struct device_attribute *attr, char *); +extern ssize_t tpm_show_caps_1_2(struct device *, struct device_attribute *attr, + char *); extern ssize_t tpm_store_cancel(struct device *, struct device_attribute *attr, const char *, size_t); +extern ssize_t tpm_show_enabled(struct device *, struct device_attribute *attr, + char *); +extern ssize_t tpm_show_active(struct device *, struct device_attribute *attr, + char *); +extern ssize_t tpm_show_owned(struct device *, struct device_attribute *attr, + char *); +extern ssize_t tpm_show_temp_deactivated(struct device *, + struct device_attribute *attr, char *); struct tpm_chip; struct tpm_vendor_specific { - u8 req_complete_mask; - u8 req_complete_val; - u8 req_canceled; + const u8 req_complete_mask; + const u8 req_complete_val; + const u8 req_canceled; void __iomem *iobase; /* ioremapped address */ unsigned long base; /* TPM base address */ + int irq; + int region_size; int have_region; @@ -63,6 +75,13 @@ struct tpm_vendor_specific { u8 (*status) (struct tpm_chip *); struct miscdevice miscdev; struct attribute_group *attr_group; + struct list_head list; + int locality; + unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* jiffies */ + unsigned long duration[3]; /* jiffies */ + + wait_queue_head_t read_queue; + wait_queue_head_t int_queue; }; struct tpm_chip { @@ -81,13 +100,15 @@ struct tpm_chip { struct work_struct work; struct semaphore tpm_mutex; /* tpm is processing */ - struct tpm_vendor_specific *vendor; + struct tpm_vendor_specific vendor; struct dentry **bios_dir; struct list_head list; }; +#define to_tpm_chip(n) container_of(n, struct tpm_chip, vendor) + static inline int tpm_read_index(int base, int index) { outb(index, base); @@ -100,8 +121,12 @@ static inline void tpm_write_index(int base, int index, int value) outb(value & 0xFF, base+1); } -extern int tpm_register_hardware(struct device *, - struct tpm_vendor_specific *); +extern void tpm_get_timeouts(struct tpm_chip *); +extern void tpm_gen_interrupt(struct tpm_chip *); +extern void tpm_continue_selftest(struct tpm_chip *); +extern unsigned long tpm_calc_ordinal_duration(struct tpm_chip *, u32); +extern struct tpm_chip* tpm_register_hardware(struct device *, + const struct tpm_vendor_specific *); extern int tpm_open(struct inode *, struct file *); extern int tpm_release(struct inode *, struct file *); extern ssize_t tpm_write(struct file *, const char __user *, size_t, diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c index ff3654964fe..58a258cec15 100644 --- a/drivers/char/tpm/tpm_atmel.c +++ b/drivers/char/tpm/tpm_atmel.c @@ -47,12 +47,12 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count) return -EIO; for (i = 0; i < 6; i++) { - status = ioread8(chip->vendor->iobase + 1); + status = ioread8(chip->vendor.iobase + 1); if ((status & ATML_STATUS_DATA_AVAIL) == 0) { dev_err(chip->dev, "error reading header\n"); return -EIO; } - *buf++ = ioread8(chip->vendor->iobase); + *buf++ = ioread8(chip->vendor.iobase); } /* size of the data received */ @@ -63,7 +63,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count) dev_err(chip->dev, "Recv size(%d) less than available space\n", size); for (; i < size; i++) { /* clear the waiting data anyway */ - status = ioread8(chip->vendor->iobase + 1); + status = ioread8(chip->vendor.iobase + 1); if ((status & ATML_STATUS_DATA_AVAIL) == 0) { dev_err(chip->dev, "error reading data\n"); return -EIO; @@ -74,16 +74,16 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count) /* read all the data available */ for (; i < size; i++) { - status = ioread8(chip->vendor->iobase + 1); + status = ioread8(chip->vendor.iobase + 1); if ((status & ATML_STATUS_DATA_AVAIL) == 0) { dev_err(chip->dev, "error reading data\n"); return -EIO; } - *buf++ = ioread8(chip->vendor->iobase); + *buf++ = ioread8(chip->vendor.iobase); } /* make sure data available is gone */ - status = ioread8(chip->vendor->iobase + 1); + status = ioread8(chip->vendor.iobase + 1); if (status & ATML_STATUS_DATA_AVAIL) { dev_err(chip->dev, "data available is stuck\n"); @@ -100,7 +100,7 @@ static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count) dev_dbg(chip->dev, "tpm_atml_send:\n"); for (i = 0; i < count; i++) { dev_dbg(chip->dev, "%d 0x%x(%d)\n", i, buf[i], buf[i]); - iowrite8(buf[i], chip->vendor->iobase); + iowrite8(buf[i], chip->vendor.iobase); } return count; @@ -108,12 +108,12 @@ static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count) static void tpm_atml_cancel(struct tpm_chip *chip) { - iowrite8(ATML_STATUS_ABORT, chip->vendor->iobase + 1); + iowrite8(ATML_STATUS_ABORT, chip->vendor.iobase + 1); } static u8 tpm_atml_status(struct tpm_chip *chip) { - return ioread8(chip->vendor->iobase + 1); + return ioread8(chip->vendor.iobase + 1); } static struct file_operations atmel_ops = { @@ -140,7 +140,7 @@ static struct attribute* atmel_attrs[] = { static struct attribute_group atmel_attr_grp = { .attrs = atmel_attrs }; -static struct tpm_vendor_specific tpm_atmel = { +static const struct tpm_vendor_specific tpm_atmel = { .recv = tpm_atml_recv, .send = tpm_atml_send, .cancel = tpm_atml_cancel, @@ -159,10 +159,10 @@ static void atml_plat_remove(void) struct tpm_chip *chip = dev_get_drvdata(&pdev->dev); if (chip) { - if (chip->vendor->have_region) - atmel_release_region(chip->vendor->base, - chip->vendor->region_size); - atmel_put_base_addr(chip->vendor); + if (chip->vendor.have_region) + atmel_release_region(chip->vendor.base, + chip->vendor.region_size); + atmel_put_base_addr(chip->vendor.iobase); tpm_remove_hardware(chip->dev); platform_device_unregister(pdev); } @@ -179,18 +179,22 @@ static struct device_driver atml_drv = { static int __init init_atmel(void) { int rc = 0; + void __iomem *iobase = NULL; + int have_region, region_size; + unsigned long base; + struct tpm_chip *chip; driver_register(&atml_drv); - if ((tpm_atmel.iobase = atmel_get_base_addr(&tpm_atmel)) == NULL) { + if ((iobase = atmel_get_base_addr(&base, ®ion_size)) == NULL) { rc = -ENODEV; goto err_unreg_drv; } - tpm_atmel.have_region = + have_region = (atmel_request_region - (tpm_atmel.base, tpm_atmel.region_size, - "tpm_atmel0") == NULL) ? 0 : 1; + (tpm_atmel.base, region_size, "tpm_atmel0") == NULL) ? 0 : 1; + if (IS_ERR (pdev = @@ -199,17 +203,25 @@ static int __init init_atmel(void) goto err_rel_reg; } - if ((rc = tpm_register_hardware(&pdev->dev, &tpm_atmel)) < 0) + if (!(chip = tpm_register_hardware(&pdev->dev, &tpm_atmel))) { + rc = -ENODEV; goto err_unreg_dev; + } + + chip->vendor.iobase = iobase; + chip->vendor.base = base; + chip->vendor.have_region = have_region; + chip->vendor.region_size = region_size; + return 0; err_unreg_dev: platform_device_unregister(pdev); err_rel_reg: - atmel_put_base_addr(&tpm_atmel); - if (tpm_atmel.have_region) - atmel_release_region(tpm_atmel.base, - tpm_atmel.region_size); + atmel_put_base_addr(iobase); + if (have_region) + atmel_release_region(base, + region_size); err_unreg_drv: driver_unregister(&atml_drv); return rc; diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h index d3478aaadd7..2e68eeb8a2c 100644 --- a/drivers/char/tpm/tpm_atmel.h +++ b/drivers/char/tpm/tpm_atmel.h @@ -28,13 +28,12 @@ #define atmel_request_region request_mem_region #define atmel_release_region release_mem_region -static inline void atmel_put_base_addr(struct tpm_vendor_specific - *vendor) +static inline void atmel_put_base_addr(void __iomem *iobase) { - iounmap(vendor->iobase); + iounmap(iobase); } -static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific *vendor) +static void __iomem * atmel_get_base_addr(unsigned long *base, int *region_size) { struct device_node *dn; unsigned long address, size; @@ -71,9 +70,9 @@ static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific *vendor) else size = reg[naddrc]; - vendor->base = address; - vendor->region_size = size; - return ioremap(vendor->base, vendor->region_size); + *base = address; + *region_size = size; + return ioremap(*base, *region_size); } #else #define atmel_getb(chip, offset) inb(chip->vendor->base + offset) @@ -106,14 +105,12 @@ static int atmel_verify_tpm11(void) return 0; } -static inline void atmel_put_base_addr(struct tpm_vendor_specific - *vendor) +static inline void atmel_put_base_addr(void __iomem *iobase) { } /* Determine where to talk to device */ -static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific - *vendor) +static void __iomem * atmel_get_base_addr(unsigned long *base, int *region_size) { int lo, hi; @@ -123,9 +120,9 @@ static void __iomem * atmel_get_base_addr(struct tpm_vendor_specific lo = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_LO); hi = tpm_read_index(TPM_ADDR, TPM_ATMEL_BASE_ADDR_HI); - vendor->base = (hi << 8) | lo; - vendor->region_size = 2; + *base = (hi << 8) | lo; + *region_size = 2; - return ioport_map(vendor->base, vendor->region_size); + return ioport_map(*base, *region_size); } #endif diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c index 537aa45d8c6..e45f0d3d12d 100644 --- a/drivers/char/tpm/tpm_bios.c +++ b/drivers/char/tpm/tpm_bios.c @@ -29,6 +29,11 @@ #define MAX_TEXT_EVENT 1000 /* Max event string length */ #define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */ +enum bios_platform_class { + BIOS_CLIENT = 0x00, + BIOS_SERVER = 0x01, +}; + struct tpm_bios_log { void *bios_event_log; void *bios_event_log_end; @@ -36,9 +41,18 @@ struct tpm_bios_log { struct acpi_tcpa { struct acpi_table_header hdr; - u16 reserved; - u32 log_max_len __attribute__ ((packed)); - u32 log_start_addr __attribute__ ((packed)); + u16 platform_class; + union { + struct client_hdr { + u32 log_max_len __attribute__ ((packed)); + u64 log_start_addr __attribute__ ((packed)); + } client; + struct server_hdr { + u16 reserved; + u64 log_max_len __attribute__ ((packed)); + u64 log_start_addr __attribute__ ((packed)); + } server; + }; }; struct tcpa_event { @@ -120,6 +134,7 @@ static const char* tcpa_pc_event_id_strings[] = { "S-CRTM Version", "S-CRTM Contents", "S-CRTM POST Contents", + "POST Contents", }; /* returns pointer to start of pos. entry of tcg log */ @@ -306,6 +321,7 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v) /* 5th: delimiter */ seq_putc(m, '\0'); + kfree(eventname); return 0; } @@ -353,6 +369,7 @@ static int tpm_ascii_bios_measurements_show(struct seq_file *m, void *v) /* 4th: eventname <= max + \'0' delimiter */ seq_printf(m, " %s\n", eventname); + kfree(eventname); return 0; } @@ -376,6 +393,7 @@ static int read_log(struct tpm_bios_log *log) struct acpi_tcpa *buff; acpi_status status; struct acpi_table_header *virt; + u64 len, start; if (log->bios_event_log != NULL) { printk(KERN_ERR @@ -396,27 +414,37 @@ static int read_log(struct tpm_bios_log *log) return -EIO; } - if (buff->log_max_len == 0) { + switch(buff->platform_class) { + case BIOS_SERVER: + len = buff->server.log_max_len; + start = buff->server.log_start_addr; + break; + case BIOS_CLIENT: + default: + len = buff->client.log_max_len; + start = buff->client.log_start_addr; + break; + } + if (!len) { printk(KERN_ERR "%s: ERROR - TCPA log area empty\n", __func__); return -EIO; } /* malloc EventLog space */ - log->bios_event_log = kmalloc(buff->log_max_len, GFP_KERNEL); + log->bios_event_log = kmalloc(len, GFP_KERNEL); if (!log->bios_event_log) { - printk - ("%s: ERROR - Not enough Memory for BIOS measurements\n", - __func__); + printk("%s: ERROR - Not enough Memory for BIOS measurements\n", + __func__); return -ENOMEM; } - log->bios_event_log_end = log->bios_event_log + buff->log_max_len; + log->bios_event_log_end = log->bios_event_log + len; - acpi_os_map_memory(buff->log_start_addr, buff->log_max_len, (void *) &virt); + acpi_os_map_memory(start, len, (void *) &virt); - memcpy(log->bios_event_log, virt, buff->log_max_len); + memcpy(log->bios_event_log, virt, len); - acpi_os_unmap_memory(virt, buff->log_max_len); + acpi_os_unmap_memory(virt, len); return 0; } diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c index 24095f6ee6d..adfff21beb2 100644 --- a/drivers/char/tpm/tpm_infineon.c +++ b/drivers/char/tpm/tpm_infineon.c @@ -15,6 +15,7 @@ * License. */ +#include <linux/init.h> #include <linux/pnp.h> #include "tpm.h" @@ -104,7 +105,7 @@ static int empty_fifo(struct tpm_chip *chip, int clear_wrfifo) if (clear_wrfifo) { for (i = 0; i < 4096; i++) { - status = inb(chip->vendor->base + WRFIFO); + status = inb(chip->vendor.base + WRFIFO); if (status == 0xff) { if (check == 5) break; @@ -124,8 +125,8 @@ static int empty_fifo(struct tpm_chip *chip, int clear_wrfifo) */ i = 0; do { - status = inb(chip->vendor->base + RDFIFO); - status = inb(chip->vendor->base + STAT); + status = inb(chip->vendor.base + RDFIFO); + status = inb(chip->vendor.base + STAT); i++; if (i == TPM_MAX_TRIES) return -EIO; @@ -138,7 +139,7 @@ static int wait(struct tpm_chip *chip, int wait_for_bit) int status; int i; for (i = 0; i < TPM_MAX_TRIES; i++) { - status = inb(chip->vendor->base + STAT); + status = inb(chip->vendor.base + STAT); /* check the status-register if wait_for_bit is set */ if (status & 1 << wait_for_bit) break; @@ -157,7 +158,7 @@ static int wait(struct tpm_chip *chip, int wait_for_bit) static void wait_and_send(struct tpm_chip *chip, u8 sendbyte) { wait(chip, STAT_XFE); - outb(sendbyte, chip->vendor->base + WRFIFO); + outb(sendbyte, chip->vendor.base + WRFIFO); } /* Note: WTX means Waiting-Time-Extension. Whenever the TPM needs more @@ -204,7 +205,7 @@ recv_begin: ret = wait(chip, STAT_RDA); if (ret) return -EIO; - buf[i] = inb(chip->vendor->base + RDFIFO); + buf[i] = inb(chip->vendor.base + RDFIFO); } if (buf[0] != TPM_VL_VER) { @@ -219,7 +220,7 @@ recv_begin: for (i = 0; i < size; i++) { wait(chip, STAT_RDA); - buf[i] = inb(chip->vendor->base + RDFIFO); + buf[i] = inb(chip->vendor.base + RDFIFO); } if ((size == 0x6D00) && (buf[1] == 0x80)) { @@ -268,7 +269,7 @@ static int tpm_inf_send(struct tpm_chip *chip, u8 * buf, size_t count) u8 count_high, count_low, count_4, count_3, count_2, count_1; /* Disabling Reset, LP and IRQC */ - outb(RESET_LP_IRQC_DISABLE, chip->vendor->base + CMD); + outb(RESET_LP_IRQC_DISABLE, chip->vendor.base + CMD); ret = empty_fifo(chip, 1); if (ret) { @@ -319,7 +320,7 @@ static void tpm_inf_cancel(struct tpm_chip *chip) static u8 tpm_inf_status(struct tpm_chip *chip) { - return inb(chip->vendor->base + STAT); + return inb(chip->vendor.base + STAT); } static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL); @@ -346,7 +347,7 @@ static struct file_operations inf_ops = { .release = tpm_release, }; -static struct tpm_vendor_specific tpm_inf = { +static const struct tpm_vendor_specific tpm_inf = { .recv = tpm_inf_recv, .send = tpm_inf_send, .cancel = tpm_inf_cancel, @@ -375,6 +376,7 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, int version[2]; int productid[2]; char chipname[20]; + struct tpm_chip *chip; /* read IO-ports through PnP */ if (pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && @@ -395,14 +397,13 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, goto err_last; } /* publish my base address and request region */ - tpm_inf.base = TPM_INF_BASE; if (request_region - (tpm_inf.base, TPM_INF_PORT_LEN, "tpm_infineon0") == NULL) { + (TPM_INF_BASE, TPM_INF_PORT_LEN, "tpm_infineon0") == NULL) { rc = -EINVAL; goto err_last; } - if (request_region(TPM_INF_ADDR, TPM_INF_ADDR_LEN, - "tpm_infineon0") == NULL) { + if (request_region + (TPM_INF_ADDR, TPM_INF_ADDR_LEN, "tpm_infineon0") == NULL) { rc = -EINVAL; goto err_last; } @@ -442,9 +443,9 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, /* configure TPM with IO-ports */ outb(IOLIMH, TPM_INF_ADDR); - outb(((tpm_inf.base >> 8) & 0xff), TPM_INF_DATA); + outb(((TPM_INF_BASE >> 8) & 0xff), TPM_INF_DATA); outb(IOLIML, TPM_INF_ADDR); - outb((tpm_inf.base & 0xff), TPM_INF_DATA); + outb((TPM_INF_BASE & 0xff), TPM_INF_DATA); /* control if IO-ports are set correctly */ outb(IOLIMH, TPM_INF_ADDR); @@ -452,10 +453,10 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, outb(IOLIML, TPM_INF_ADDR); iol = inb(TPM_INF_DATA); - if ((ioh << 8 | iol) != tpm_inf.base) { + if ((ioh << 8 | iol) != TPM_INF_BASE) { dev_err(&dev->dev, - "Could not set IO-ports to 0x%lx\n", - tpm_inf.base); + "Could not set IO-ports to 0x%x\n", + TPM_INF_BASE); rc = -EIO; goto err_release_region; } @@ -466,15 +467,15 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, outb(DISABLE_REGISTER_PAIR, TPM_INF_ADDR); /* disable RESET, LP and IRQC */ - outb(RESET_LP_IRQC_DISABLE, tpm_inf.base + CMD); + outb(RESET_LP_IRQC_DISABLE, TPM_INF_BASE + CMD); /* Finally, we're done, print some infos */ dev_info(&dev->dev, "TPM found: " "config base 0x%x, " "io base 0x%x, " - "chip version %02x%02x, " - "vendor id %x%x (Infineon), " - "product id %02x%02x" + "chip version 0x%02x%02x, " + "vendor id 0x%x%x (Infineon), " + "product id 0x%02x%02x" "%s\n", TPM_INF_ADDR, TPM_INF_BASE, @@ -482,11 +483,10 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, vendorid[0], vendorid[1], productid[0], productid[1], chipname); - rc = tpm_register_hardware(&dev->dev, &tpm_inf); - if (rc < 0) { - rc = -ENODEV; + if (!(chip = tpm_register_hardware(&dev->dev, &tpm_inf))) { goto err_release_region; } + chip->vendor.base = TPM_INF_BASE; return 0; } else { rc = -ENODEV; @@ -494,7 +494,7 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev, } err_release_region: - release_region(tpm_inf.base, TPM_INF_PORT_LEN); + release_region(TPM_INF_BASE, TPM_INF_PORT_LEN); release_region(TPM_INF_ADDR, TPM_INF_ADDR_LEN); err_last: @@ -506,7 +506,8 @@ static __devexit void tpm_inf_pnp_remove(struct pnp_dev *dev) struct tpm_chip *chip = pnp_get_drvdata(dev); if (chip) { - release_region(chip->vendor->base, TPM_INF_PORT_LEN); + release_region(TPM_INF_BASE, TPM_INF_PORT_LEN); + release_region(TPM_INF_ADDR, TPM_INF_ADDR_LEN); tpm_remove_hardware(chip->dev); } } @@ -520,7 +521,7 @@ static struct pnp_driver tpm_inf_pnp = { }, .id_table = tpm_pnp_tbl, .probe = tpm_inf_pnp_probe, - .remove = tpm_inf_pnp_remove, + .remove = __devexit_p(tpm_inf_pnp_remove), }; static int __init init_inf(void) @@ -538,5 +539,5 @@ module_exit(cleanup_inf); MODULE_AUTHOR("Marcel Selhorst <selhorst@crypto.rub.de>"); MODULE_DESCRIPTION("Driver for Infineon TPM SLD 9630 TT 1.1 / SLB 9635 TT 1.2"); -MODULE_VERSION("1.7"); +MODULE_VERSION("1.8"); MODULE_LICENSE("GPL"); diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c index 680a8e33188..4c8bc06c7d9 100644 --- a/drivers/char/tpm/tpm_nsc.c +++ b/drivers/char/tpm/tpm_nsc.c @@ -71,7 +71,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data) unsigned long stop; /* status immediately available check */ - *data = inb(chip->vendor->base + NSC_STATUS); + *data = inb(chip->vendor.base + NSC_STATUS); if ((*data & mask) == val) return 0; @@ -79,7 +79,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data) stop = jiffies + 10 * HZ; do { msleep(TPM_TIMEOUT); - *data = inb(chip->vendor->base + 1); + *data = inb(chip->vendor.base + 1); if ((*data & mask) == val) return 0; } @@ -94,9 +94,9 @@ static int nsc_wait_for_ready(struct tpm_chip *chip) unsigned long stop; /* status immediately available check */ - status = inb(chip->vendor->base + NSC_STATUS); + status = inb(chip->vendor.base + NSC_STATUS); if (status & NSC_STATUS_OBF) - status = inb(chip->vendor->base + NSC_DATA); + status = inb(chip->vendor.base + NSC_DATA); if (status & NSC_STATUS_RDY) return 0; @@ -104,9 +104,9 @@ static int nsc_wait_for_ready(struct tpm_chip *chip) stop = jiffies + 100; do { msleep(TPM_TIMEOUT); - status = inb(chip->vendor->base + NSC_STATUS); + status = inb(chip->vendor.base + NSC_STATUS); if (status & NSC_STATUS_OBF) - status = inb(chip->vendor->base + NSC_DATA); + status = inb(chip->vendor.base + NSC_DATA); if (status & NSC_STATUS_RDY) return 0; } @@ -132,7 +132,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count) return -EIO; } if ((data = - inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_NORMAL) { + inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_NORMAL) { dev_err(chip->dev, "not in normal mode (0x%x)\n", data); return -EIO; @@ -148,7 +148,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count) } if (data & NSC_STATUS_F0) break; - *p = inb(chip->vendor->base + NSC_DATA); + *p = inb(chip->vendor.base + NSC_DATA); } if ((data & NSC_STATUS_F0) == 0 && @@ -156,7 +156,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count) dev_err(chip->dev, "F0 not set\n"); return -EIO; } - if ((data = inb(chip->vendor->base + NSC_DATA)) != NSC_COMMAND_EOC) { + if ((data = inb(chip->vendor.base + NSC_DATA)) != NSC_COMMAND_EOC) { dev_err(chip->dev, "expected end of command(0x%x)\n", data); return -EIO; @@ -182,7 +182,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count) * fix it. Not sure why this is needed, we followed the flow * chart in the manual to the letter. */ - outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND); + outb(NSC_COMMAND_CANCEL, chip->vendor.base + NSC_COMMAND); if (nsc_wait_for_ready(chip) != 0) return -EIO; @@ -192,7 +192,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count) return -EIO; } - outb(NSC_COMMAND_NORMAL, chip->vendor->base + NSC_COMMAND); + outb(NSC_COMMAND_NORMAL, chip->vendor.base + NSC_COMMAND); if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) { dev_err(chip->dev, "IBR timeout\n"); return -EIO; @@ -204,26 +204,26 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count) "IBF timeout (while writing data)\n"); return -EIO; } - outb(buf[i], chip->vendor->base + NSC_DATA); + outb(buf[i], chip->vendor.base + NSC_DATA); } if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) { dev_err(chip->dev, "IBF timeout\n"); return -EIO; } - outb(NSC_COMMAND_EOC, chip->vendor->base + NSC_COMMAND); + outb(NSC_COMMAND_EOC, chip->vendor.base + NSC_COMMAND); return count; } static void tpm_nsc_cancel(struct tpm_chip *chip) { - outb(NSC_COMMAND_CANCEL, chip->vendor->base + NSC_COMMAND); + outb(NSC_COMMAND_CANCEL, chip->vendor.base + NSC_COMMAND); } static u8 tpm_nsc_status(struct tpm_chip *chip) { - return inb(chip->vendor->base + NSC_STATUS); + return inb(chip->vendor.base + NSC_STATUS); } static struct file_operations nsc_ops = { @@ -250,7 +250,7 @@ static struct attribute * nsc_attrs[] = { static struct attribute_group nsc_attr_grp = { .attrs = nsc_attrs }; -static struct tpm_vendor_specific tpm_nsc = { +static const struct tpm_vendor_specific tpm_nsc = { .recv = tpm_nsc_recv, .send = tpm_nsc_send, .cancel = tpm_nsc_cancel, @@ -268,7 +268,7 @@ static void __devexit tpm_nsc_remove(struct device *dev) { struct tpm_chip *chip = dev_get_drvdata(dev); if ( chip ) { - release_region(chip->vendor->base, 2); + release_region(chip->vendor.base, 2); tpm_remove_hardware(chip->dev); } } @@ -286,7 +286,8 @@ static int __init init_nsc(void) int rc = 0; int lo, hi; int nscAddrBase = TPM_ADDR; - + struct tpm_chip *chip; + unsigned long base; /* verify that it is a National part (SID) */ if (tpm_read_index(TPM_ADDR, NSC_SID_INDEX) != 0xEF) { @@ -300,7 +301,7 @@ static int __init init_nsc(void) hi = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_HI); lo = tpm_read_index(nscAddrBase, TPM_NSC_BASE0_LO); - tpm_nsc.base = (hi<<8) | lo; + base = (hi<<8) | lo; /* enable the DPM module */ tpm_write_index(nscAddrBase, NSC_LDC_INDEX, 0x01); @@ -320,13 +321,15 @@ static int __init init_nsc(void) if ((rc = platform_device_register(pdev)) < 0) goto err_free_dev; - if (request_region(tpm_nsc.base, 2, "tpm_nsc0") == NULL ) { + if (request_region(base, 2, "tpm_nsc0") == NULL ) { rc = -EBUSY; goto err_unreg_dev; } - if ((rc = tpm_register_hardware(&pdev->dev, &tpm_nsc)) < 0) + if (!(chip = tpm_register_hardware(&pdev->dev, &tpm_nsc))) { + rc = -ENODEV; goto err_rel_reg; + } dev_dbg(&pdev->dev, "NSC TPM detected\n"); dev_dbg(&pdev->dev, @@ -361,10 +364,12 @@ static int __init init_nsc(void) "NSC TPM revision %d\n", tpm_read_index(nscAddrBase, 0x27) & 0x1F); + chip->vendor.base = base; + return 0; err_rel_reg: - release_region(tpm_nsc.base, 2); + release_region(base, 2); err_unreg_dev: platform_device_unregister(pdev); err_free_dev: diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c new file mode 100644 index 00000000000..b9cae9a238b --- /dev/null +++ b/drivers/char/tpm/tpm_tis.c @@ -0,0 +1,669 @@ +/* + * Copyright (C) 2005, 2006 IBM Corporation + * + * Authors: + * Leendert van Doorn <leendert@watson.ibm.com> + * Kylene Hall <kjhall@us.ibm.com> + * + * Device driver for TCG/TCPA TPM (trusted platform module). + * Specifications at www.trustedcomputinggroup.org + * + * This device driver implements the TPM interface as defined in + * the TCG TPM Interface Spec version 1.2, revision 1.0. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2 of the + * License. + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/pnp.h> +#include <linux/interrupt.h> +#include <linux/wait.h> +#include "tpm.h" + +#define TPM_HEADER_SIZE 10 + +enum tis_access { + TPM_ACCESS_VALID = 0x80, + TPM_ACCESS_ACTIVE_LOCALITY = 0x20, + TPM_ACCESS_REQUEST_PENDING = 0x04, + TPM_ACCESS_REQUEST_USE = 0x02, +}; + +enum tis_status { + TPM_STS_VALID = 0x80, + TPM_STS_COMMAND_READY = 0x40, + TPM_STS_GO = 0x20, + TPM_STS_DATA_AVAIL = 0x10, + TPM_STS_DATA_EXPECT = 0x08, +}; + +enum tis_int_flags { + TPM_GLOBAL_INT_ENABLE = 0x80000000, + TPM_INTF_BURST_COUNT_STATIC = 0x100, + TPM_INTF_CMD_READY_INT = 0x080, + TPM_INTF_INT_EDGE_FALLING = 0x040, + TPM_INTF_INT_EDGE_RISING = 0x020, + TPM_INTF_INT_LEVEL_LOW = 0x010, + TPM_INTF_INT_LEVEL_HIGH = 0x008, + TPM_INTF_LOCALITY_CHANGE_INT = 0x004, + TPM_INTF_STS_VALID_INT = 0x002, + TPM_INTF_DATA_AVAIL_INT = 0x001, +}; + +enum tis_defaults { + TIS_MEM_BASE = 0xFED4000, + TIS_MEM_LEN = 0x5000, + TIS_SHORT_TIMEOUT = 750, /* ms */ + TIS_LONG_TIMEOUT = 2000, /* 2 sec */ +}; + +#define TPM_ACCESS(l) (0x0000 | ((l) << 12)) +#define TPM_INT_ENABLE(l) (0x0008 | ((l) << 12)) +#define TPM_INT_VECTOR(l) (0x000C | ((l) << 12)) +#define TPM_INT_STATUS(l) (0x0010 | ((l) << 12)) +#define TPM_INTF_CAPS(l) (0x0014 | ((l) << 12)) +#define TPM_STS(l) (0x0018 | ((l) << 12)) +#define TPM_DATA_FIFO(l) (0x0024 | ((l) << 12)) + +#define TPM_DID_VID(l) (0x0F00 | ((l) << 12)) +#define TPM_RID(l) (0x0F04 | ((l) << 12)) + +static LIST_HEAD(tis_chips); +static DEFINE_SPINLOCK(tis_lock); + +static int check_locality(struct tpm_chip *chip, int l) +{ + if ((ioread8(chip->vendor.iobase + TPM_ACCESS(l)) & + (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) == + (TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) + return chip->vendor.locality = l; + + return -1; +} + +static void release_locality(struct tpm_chip *chip, int l, int force) +{ + if (force || (ioread8(chip->vendor.iobase + TPM_ACCESS(l)) & + (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) == + (TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) + iowrite8(TPM_ACCESS_ACTIVE_LOCALITY, + chip->vendor.iobase + TPM_ACCESS(l)); +} + +static int request_locality(struct tpm_chip *chip, int l) +{ + unsigned long stop; + long rc; + + if (check_locality(chip, l) >= 0) + return l; + + iowrite8(TPM_ACCESS_REQUEST_USE, + chip->vendor.iobase + TPM_ACCESS(l)); + + if (chip->vendor.irq) { + rc = wait_event_interruptible_timeout(chip->vendor.int_queue, + (check_locality + (chip, l) >= 0), + chip->vendor.timeout_a); + if (rc > 0) + return l; + + } else { + /* wait for burstcount */ + stop = jiffies + chip->vendor.timeout_a; + do { + if (check_locality(chip, l) >= 0) + return l; + msleep(TPM_TIMEOUT); + } + while (time_before(jiffies, stop)); + } + return -1; +} + +static u8 tpm_tis_status(struct tpm_chip *chip) +{ + return ioread8(chip->vendor.iobase + + TPM_STS(chip->vendor.locality)); +} + +static void tpm_tis_ready(struct tpm_chip *chip) +{ + /* this causes the current command to be aborted */ + iowrite8(TPM_STS_COMMAND_READY, + chip->vendor.iobase + TPM_STS(chip->vendor.locality)); +} + +static int get_burstcount(struct tpm_chip *chip) +{ + unsigned long stop; + int burstcnt; + + /* wait for burstcount */ + /* which timeout value, spec has 2 answers (c & d) */ + stop = jiffies + chip->vendor.timeout_d; + do { + burstcnt = ioread8(chip->vendor.iobase + + TPM_STS(chip->vendor.locality) + 1); + burstcnt += ioread8(chip->vendor.iobase + + TPM_STS(chip->vendor.locality) + + 2) << 8; + if (burstcnt) + return burstcnt; + msleep(TPM_TIMEOUT); + } while (time_before(jiffies, stop)); + return -EBUSY; +} + +static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout, + wait_queue_head_t *queue) +{ + unsigned long stop; + long rc; + u8 status; + + /* check current status */ + status = tpm_tis_status(chip); + if ((status & mask) == mask) + return 0; + + if (chip->vendor.irq) { + rc = wait_event_interruptible_timeout(*queue, + ((tpm_tis_status + (chip) & mask) == + mask), timeout); + if (rc > 0) + return 0; + } else { + stop = jiffies + timeout; + do { + msleep(TPM_TIMEOUT); + status = tpm_tis_status(chip); + if ((status & mask) == mask) + return 0; + } while (time_before(jiffies, stop)); + } + return -ETIME; +} + +static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) +{ + int size = 0, burstcnt; + while (size < count && + wait_for_stat(chip, + TPM_STS_DATA_AVAIL | TPM_STS_VALID, + chip->vendor.timeout_c, + &chip->vendor.read_queue) + == 0) { + burstcnt = get_burstcount(chip); + for (; burstcnt > 0 && size < count; burstcnt--) + buf[size++] = ioread8(chip->vendor.iobase + + TPM_DATA_FIFO(chip->vendor. + locality)); + } + return size; +} + +static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count) +{ + int size = 0; + int expected, status; + + if (count < TPM_HEADER_SIZE) { + size = -EIO; + goto out; + } + + /* read first 10 bytes, including tag, paramsize, and result */ + if ((size = + recv_data(chip, buf, TPM_HEADER_SIZE)) < TPM_HEADER_SIZE) { + dev_err(chip->dev, "Unable to read header\n"); + goto out; + } + + expected = be32_to_cpu(*(__be32 *) (buf + 2)); + if (expected > count) { + size = -EIO; + goto out; + } + + if ((size += + recv_data(chip, &buf[TPM_HEADER_SIZE], + expected - TPM_HEADER_SIZE)) < expected) { + dev_err(chip->dev, "Unable to read remainder of result\n"); + size = -ETIME; + goto out; + } + + wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, + &chip->vendor.int_queue); + status = tpm_tis_status(chip); + if (status & TPM_STS_DATA_AVAIL) { /* retry? */ + dev_err(chip->dev, "Error left over data\n"); + size = -EIO; + goto out; + } + +out: + tpm_tis_ready(chip); + release_locality(chip, chip->vendor.locality, 0); + return size; +} + +/* + * If interrupts are used (signaled by an irq set in the vendor structure) + * tpm.c can skip polling for the data to be available as the interrupt is + * waited for here + */ +static int tpm_tis_send(struct tpm_chip *chip, u8 *buf, size_t len) +{ + int rc, status, burstcnt; + size_t count = 0; + u32 ordinal; + + if (request_locality(chip, 0) < 0) + return -EBUSY; + + status = tpm_tis_status(chip); + if ((status & TPM_STS_COMMAND_READY) == 0) { + tpm_tis_ready(chip); + if (wait_for_stat + (chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b, + &chip->vendor.int_queue) < 0) { + rc = -ETIME; + goto out_err; + } + } + + while (count < len - 1) { + burstcnt = get_burstcount(chip); + for (; burstcnt > 0 && count < len - 1; burstcnt--) { + iowrite8(buf[count], chip->vendor.iobase + + TPM_DATA_FIFO(chip->vendor.locality)); + count++; + } + + wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, + &chip->vendor.int_queue); + status = tpm_tis_status(chip); + if ((status & TPM_STS_DATA_EXPECT) == 0) { + rc = -EIO; + goto out_err; + } + } + + /* write last byte */ + iowrite8(buf[count], + chip->vendor.iobase + + TPM_DATA_FIFO(chip->vendor.locality)); + wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, + &chip->vendor.int_queue); + status = tpm_tis_status(chip); + if ((status & TPM_STS_DATA_EXPECT) != 0) { + rc = -EIO; + goto out_err; + } + + /* go and do it */ + iowrite8(TPM_STS_GO, + chip->vendor.iobase + TPM_STS(chip->vendor.locality)); + + if (chip->vendor.irq) { + ordinal = be32_to_cpu(*((__be32 *) (buf + 6))); + if (wait_for_stat + (chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, + tpm_calc_ordinal_duration(chip, ordinal), + &chip->vendor.read_queue) < 0) { + rc = -ETIME; + goto out_err; + } + } + return len; +out_err: + tpm_tis_ready(chip); + release_locality(chip, chip->vendor.locality, 0); + return rc; +} + +static struct file_operations tis_ops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .open = tpm_open, + .read = tpm_read, + .write = tpm_write, + .release = tpm_release, +}; + +static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL); +static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL); +static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL); +static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); +static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); +static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, + NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); +static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); + +static struct attribute *tis_attrs[] = { + &dev_attr_pubek.attr, + &dev_attr_pcrs.attr, + &dev_attr_enabled.attr, + &dev_attr_active.attr, + &dev_attr_owned.attr, + &dev_attr_temp_deactivated.attr, + &dev_attr_caps.attr, + &dev_attr_cancel.attr, NULL, +}; + +static struct attribute_group tis_attr_grp = { + .attrs = tis_attrs +}; + +static struct tpm_vendor_specific tpm_tis = { + .status = tpm_tis_status, + .recv = tpm_tis_recv, + .send = tpm_tis_send, + .cancel = tpm_tis_ready, + .req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_canceled = TPM_STS_COMMAND_READY, + .attr_group = &tis_attr_grp, + .miscdev = { + .fops = &tis_ops,}, +}; + +static irqreturn_t tis_int_probe(int irq, void *dev_id, struct pt_regs *regs) +{ + struct tpm_chip *chip = (struct tpm_chip *) dev_id; + u32 interrupt; + + interrupt = ioread32(chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + + if (interrupt == 0) + return IRQ_NONE; + + chip->vendor.irq = irq; + + /* Clear interrupts handled with TPM_EOI */ + iowrite32(interrupt, + chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + return IRQ_HANDLED; +} + +static irqreturn_t tis_int_handler(int irq, void *dev_id, struct pt_regs *regs) +{ + struct tpm_chip *chip = (struct tpm_chip *) dev_id; + u32 interrupt; + int i; + + interrupt = ioread32(chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + + if (interrupt == 0) + return IRQ_NONE; + + if (interrupt & TPM_INTF_DATA_AVAIL_INT) + wake_up_interruptible(&chip->vendor.read_queue); + if (interrupt & TPM_INTF_LOCALITY_CHANGE_INT) + for (i = 0; i < 5; i++) + if (check_locality(chip, i) >= 0) + break; + if (interrupt & + (TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_STS_VALID_INT | + TPM_INTF_CMD_READY_INT)) + wake_up_interruptible(&chip->vendor.int_queue); + + /* Clear interrupts handled with TPM_EOI */ + iowrite32(interrupt, + chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + return IRQ_HANDLED; +} + +static int interrupts = 1; +module_param(interrupts, bool, 0444); +MODULE_PARM_DESC(interrupts, "Enable interrupts"); + +static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev, + const struct pnp_device_id *pnp_id) +{ + u32 vendor, intfcaps, intmask; + int rc, i; + unsigned long start, len; + struct tpm_chip *chip; + + start = pnp_mem_start(pnp_dev, 0); + len = pnp_mem_len(pnp_dev, 0); + + if (!start) + start = TIS_MEM_BASE; + if (!len) + len = TIS_MEM_LEN; + + if (!(chip = tpm_register_hardware(&pnp_dev->dev, &tpm_tis))) + return -ENODEV; + + chip->vendor.iobase = ioremap(start, len); + if (!chip->vendor.iobase) { + rc = -EIO; + goto out_err; + } + + vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0)); + if ((vendor & 0xFFFF) == 0xFFFF) { + rc = -ENODEV; + goto out_err; + } + + /* Default timeouts */ + chip->vendor.timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT); + chip->vendor.timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT); + chip->vendor.timeout_c = msecs_to_jiffies(TIS_SHORT_TIMEOUT); + chip->vendor.timeout_d = msecs_to_jiffies(TIS_SHORT_TIMEOUT); + + dev_info(&pnp_dev->dev, + "1.2 TPM (device-id 0x%X, rev-id %d)\n", + vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0))); + + /* Figure out the capabilities */ + intfcaps = + ioread32(chip->vendor.iobase + + TPM_INTF_CAPS(chip->vendor.locality)); + dev_dbg(&pnp_dev->dev, "TPM interface capabilities (0x%x):\n", + intfcaps); + if (intfcaps & TPM_INTF_BURST_COUNT_STATIC) + dev_dbg(&pnp_dev->dev, "\tBurst Count Static\n"); + if (intfcaps & TPM_INTF_CMD_READY_INT) + dev_dbg(&pnp_dev->dev, "\tCommand Ready Int Support\n"); + if (intfcaps & TPM_INTF_INT_EDGE_FALLING) + dev_dbg(&pnp_dev->dev, "\tInterrupt Edge Falling\n"); + if (intfcaps & TPM_INTF_INT_EDGE_RISING) + dev_dbg(&pnp_dev->dev, "\tInterrupt Edge Rising\n"); + if (intfcaps & TPM_INTF_INT_LEVEL_LOW) + dev_dbg(&pnp_dev->dev, "\tInterrupt Level Low\n"); + if (intfcaps & TPM_INTF_INT_LEVEL_HIGH) + dev_dbg(&pnp_dev->dev, "\tInterrupt Level High\n"); + if (intfcaps & TPM_INTF_LOCALITY_CHANGE_INT) + dev_dbg(&pnp_dev->dev, "\tLocality Change Int Support\n"); + if (intfcaps & TPM_INTF_STS_VALID_INT) + dev_dbg(&pnp_dev->dev, "\tSts Valid Int Support\n"); + if (intfcaps & TPM_INTF_DATA_AVAIL_INT) + dev_dbg(&pnp_dev->dev, "\tData Avail Int Support\n"); + + if (request_locality(chip, 0) != 0) { + rc = -ENODEV; + goto out_err; + } + + /* INTERRUPT Setup */ + init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&chip->vendor.int_queue); + + intmask = + ioread32(chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + + intmask |= TPM_INTF_CMD_READY_INT + | TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_DATA_AVAIL_INT + | TPM_INTF_STS_VALID_INT; + + iowrite32(intmask, + chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + if (interrupts) { + chip->vendor.irq = + ioread8(chip->vendor.iobase + + TPM_INT_VECTOR(chip->vendor.locality)); + + for (i = 3; i < 16 && chip->vendor.irq == 0; i++) { + iowrite8(i, chip->vendor.iobase + + TPM_INT_VECTOR(chip->vendor.locality)); + if (request_irq + (i, tis_int_probe, SA_SHIRQ, + chip->vendor.miscdev.name, chip) != 0) { + dev_info(chip->dev, + "Unable to request irq: %d for probe\n", + i); + continue; + } + + /* Clear all existing */ + iowrite32(ioread32 + (chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)), + chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + + /* Turn on */ + iowrite32(intmask | TPM_GLOBAL_INT_ENABLE, + chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + + /* Generate Interrupts */ + tpm_gen_interrupt(chip); + + /* Turn off */ + iowrite32(intmask, + chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + free_irq(i, chip); + } + } + if (chip->vendor.irq) { + iowrite8(chip->vendor.irq, + chip->vendor.iobase + + TPM_INT_VECTOR(chip->vendor.locality)); + if (request_irq + (chip->vendor.irq, tis_int_handler, SA_SHIRQ, + chip->vendor.miscdev.name, chip) != 0) { + dev_info(chip->dev, + "Unable to request irq: %d for use\n", + chip->vendor.irq); + chip->vendor.irq = 0; + } else { + /* Clear all existing */ + iowrite32(ioread32 + (chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)), + chip->vendor.iobase + + TPM_INT_STATUS(chip->vendor.locality)); + + /* Turn on */ + iowrite32(intmask | TPM_GLOBAL_INT_ENABLE, + chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + } + } + + INIT_LIST_HEAD(&chip->vendor.list); + spin_lock(&tis_lock); + list_add(&chip->vendor.list, &tis_chips); + spin_unlock(&tis_lock); + + tpm_get_timeouts(chip); + tpm_continue_selftest(chip); + + return 0; +out_err: + if (chip->vendor.iobase) + iounmap(chip->vendor.iobase); + tpm_remove_hardware(chip->dev); + return rc; +} + +static int tpm_tis_pnp_suspend(struct pnp_dev *dev, pm_message_t msg) +{ + return tpm_pm_suspend(&dev->dev, msg); +} + +static int tpm_tis_pnp_resume(struct pnp_dev *dev) +{ + return tpm_pm_resume(&dev->dev); +} + +static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = { + {"PNP0C31", 0}, /* TPM */ + {"ATM1200", 0}, /* Atmel */ + {"IFX0102", 0}, /* Infineon */ + {"BCM0101", 0}, /* Broadcom */ + {"NSC1200", 0}, /* National */ + /* Add new here */ + {"", 0}, /* User Specified */ + {"", 0} /* Terminator */ +}; + +static struct pnp_driver tis_pnp_driver = { + .name = "tpm_tis", + .id_table = tpm_pnp_tbl, + .probe = tpm_tis_pnp_init, + .suspend = tpm_tis_pnp_suspend, + .resume = tpm_tis_pnp_resume, +}; + +#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2 +module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id, + sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444); +MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe"); + +static int __init init_tis(void) +{ + return pnp_register_driver(&tis_pnp_driver); +} + +static void __exit cleanup_tis(void) +{ + struct tpm_vendor_specific *i, *j; + struct tpm_chip *chip; + spin_lock(&tis_lock); + list_for_each_entry_safe(i, j, &tis_chips, list) { + chip = to_tpm_chip(i); + iowrite32(~TPM_GLOBAL_INT_ENABLE & + ioread32(chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor. + locality)), + chip->vendor.iobase + + TPM_INT_ENABLE(chip->vendor.locality)); + release_locality(chip, chip->vendor.locality, 1); + if (chip->vendor.irq) + free_irq(chip->vendor.irq, chip); + iounmap(i->iobase); + list_del(&i->list); + tpm_remove_hardware(chip->dev); + } + spin_unlock(&tis_lock); + pnp_unregister_driver(&tis_pnp_driver); +} + +module_init(init_tis); +module_exit(cleanup_tis); +MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)"); +MODULE_DESCRIPTION("TPM Driver"); +MODULE_VERSION("2.0"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c index 1dca3cf42a5..2e4abdc2636 100644 --- a/drivers/input/keyboard/hil_kbd.c +++ b/drivers/input/keyboard/hil_kbd.c @@ -350,11 +350,11 @@ static int hil_kbd_connect(struct serio *serio, struct serio_driver *drv) return 0; bail2: serio_close(serio); + serio_set_drvdata(serio, NULL); bail1: input_free_device(kbd->dev); bail0: kfree(kbd); - serio_set_drvdata(serio, NULL); return -EIO; } diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index f86ed6af3aa..eb41aba3dde 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -5,8 +5,6 @@ * Tilman Schmidt <tilman@imap.cc>, * Stefan Eilers. * - * Based on usb-gigaset.c. - * * ===================================================================== * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -46,19 +44,20 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode"); #define GIGASET_DEVFSNAME "gig/bas/" #define GIGASET_DEVNAME "ttyGB" -#define IF_WRITEBUF 256 //FIXME +/* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */ +#define IF_WRITEBUF 264 /* Values for the Gigaset 307x */ #define USB_GIGA_VENDOR_ID 0x0681 -#define USB_GIGA_PRODUCT_ID 0x0001 -#define USB_4175_PRODUCT_ID 0x0002 +#define USB_3070_PRODUCT_ID 0x0001 +#define USB_3075_PRODUCT_ID 0x0002 #define USB_SX303_PRODUCT_ID 0x0021 #define USB_SX353_PRODUCT_ID 0x0022 /* table of devices that work with this driver */ static struct usb_device_id gigaset_table [] = { - { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_GIGA_PRODUCT_ID) }, - { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_4175_PRODUCT_ID) }, + { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3070_PRODUCT_ID) }, + { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3075_PRODUCT_ID) }, { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_SX303_PRODUCT_ID) }, { USB_DEVICE(USB_GIGA_VENDOR_ID, USB_SX353_PRODUCT_ID) }, { } /* Terminating entry */ @@ -77,6 +76,10 @@ static int gigaset_probe(struct usb_interface *interface, /* Function will be called if the device is unplugged */ static void gigaset_disconnect(struct usb_interface *interface); +static void read_ctrl_callback(struct urb *, struct pt_regs *); +static void stopurbs(struct bas_bc_state *); +static int atwrite_submit(struct cardstate *, unsigned char *, int); +static int start_cbsend(struct cardstate *); /*==============================================================================*/ @@ -111,12 +114,14 @@ struct bas_cardstate { }; /* status of direct USB connection to 307x base (bits in basstate) */ -#define BS_ATOPEN 0x001 -#define BS_B1OPEN 0x002 -#define BS_B2OPEN 0x004 -#define BS_ATREADY 0x008 -#define BS_INIT 0x010 -#define BS_ATTIMER 0x020 +#define BS_ATOPEN 0x001 /* AT channel open */ +#define BS_B1OPEN 0x002 /* B channel 1 open */ +#define BS_B2OPEN 0x004 /* B channel 2 open */ +#define BS_ATREADY 0x008 /* base ready for AT command */ +#define BS_INIT 0x010 /* base has signalled INIT_OK */ +#define BS_ATTIMER 0x020 /* waiting for HD_READY_SEND_ATDATA */ +#define BS_ATRDPEND 0x040 /* urb_cmd_in in use */ +#define BS_ATWRPEND 0x080 /* urb_cmd_out in use */ static struct gigaset_driver *driver = NULL; @@ -130,6 +135,47 @@ static struct usb_driver gigaset_usb_driver = { .id_table = gigaset_table, }; +/* get message text for usb_submit_urb return code + */ +static char *get_usb_rcmsg(int rc) +{ + static char unkmsg[28]; + + switch (rc) { + case 0: + return "success"; + case -ENOMEM: + return "out of memory"; + case -ENODEV: + return "device not present"; + case -ENOENT: + return "endpoint not present"; + case -ENXIO: + return "URB type not supported"; + case -EINVAL: + return "invalid argument"; + case -EAGAIN: + return "start frame too early or too much scheduled"; + case -EFBIG: + return "too many isochronous frames requested"; + case -EPIPE: + return "endpoint stalled"; + case -EMSGSIZE: + return "invalid packet size"; + case -ENOSPC: + return "would overcommit USB bandwidth"; + case -ESHUTDOWN: + return "device shut down"; + case -EPERM: + return "reject flag set"; + case -EHOSTUNREACH: + return "device suspended"; + default: + snprintf(unkmsg, sizeof(unkmsg), "unknown error %d", rc); + return unkmsg; + } +} + /* get message text for USB status code */ static char *get_usb_statmsg(int status) @@ -140,43 +186,37 @@ static char *get_usb_statmsg(int status) case 0: return "success"; case -ENOENT: - return "canceled"; - case -ECONNRESET: - return "canceled (async)"; + return "unlinked (sync)"; case -EINPROGRESS: return "pending"; case -EPROTO: - return "bit stuffing or unknown USB error"; + return "bit stuffing error, timeout, or unknown USB error"; case -EILSEQ: - return "Illegal byte sequence (CRC mismatch)"; - case -EPIPE: - return "babble detect or endpoint stalled"; - case -ENOSR: - return "buffer error"; + return "CRC mismatch, timeout, or unknown USB error"; case -ETIMEDOUT: return "timed out"; - case -ENODEV: - return "device not present"; + case -EPIPE: + return "endpoint stalled"; + case -ECOMM: + return "IN buffer overrun"; + case -ENOSR: + return "OUT buffer underrun"; + case -EOVERFLOW: + return "too much data"; case -EREMOTEIO: return "short packet detected"; + case -ENODEV: + return "device removed"; case -EXDEV: return "partial isochronous transfer"; case -EINVAL: return "invalid argument"; - case -ENXIO: - return "URB already queued"; - case -EAGAIN: - return "isochronous start frame too early or too much scheduled"; - case -EFBIG: - return "too many isochronous frames requested"; - case -EMSGSIZE: - return "endpoint message size zero"; + case -ECONNRESET: + return "unlinked (async)"; case -ESHUTDOWN: - return "endpoint shutdown"; - case -EBUSY: - return "another request pending"; + return "device shut down"; default: - snprintf(unkmsg, sizeof(unkmsg), "unknown error %d", status); + snprintf(unkmsg, sizeof(unkmsg), "unknown status %d", status); return unkmsg; } } @@ -277,18 +317,17 @@ static inline void error_hangup(struct bc_state *bcs) gig_dbg(DEBUG_ANY, "%s: scheduling HUP for channel %d", __func__, bcs->channel); - if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) { - //FIXME what should we do? - return; - } + if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) + dev_err(cs->dev, "event queue full\n"); gigaset_schedule_event(cs); } /* error_reset * reset Gigaset device because of an unrecoverable error - * This function may be called from any context and takes care of scheduling - * the necessary actions for execution outside of interrupt context. + * This function may be called from any context, and should take care of + * scheduling the necessary actions for execution outside of interrupt context. + * Right now, it just generates a kernel message calling for help. * argument: * controller state structure */ @@ -364,36 +403,38 @@ static void cmd_in_timeout(unsigned long data) { struct cardstate *cs = (struct cardstate *) data; struct bas_cardstate *ucs = cs->hw.bas; - unsigned long flags; - spin_lock_irqsave(&cs->lock, flags); - if (unlikely(!cs->connected)) { - gig_dbg(DEBUG_USBREQ, "%s: disconnected", __func__); - spin_unlock_irqrestore(&cs->lock, flags); - return; - } if (!ucs->rcvbuf_size) { gig_dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__); - spin_unlock_irqrestore(&cs->lock, flags); return; } - spin_unlock_irqrestore(&cs->lock, flags); dev_err(cs->dev, "timeout reading AT response\n"); error_reset(cs); //FIXME retry? } +/* set/clear bits in base connection state, return previous state + */ +inline static int update_basstate(struct bas_cardstate *ucs, + int set, int clear) +{ + unsigned long flags; + int state; -static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs); + spin_lock_irqsave(&ucs->lock, flags); + state = atomic_read(&ucs->basstate); + atomic_set(&ucs->basstate, (state & ~clear) | set); + spin_unlock_irqrestore(&ucs->lock, flags); + return state; +} /* atread_submit - * submit an HD_READ_ATMESSAGE command URB + * submit an HD_READ_ATMESSAGE command URB and optionally start a timeout * parameters: * cs controller state structure * timeout timeout in 1/10 sec., 0: none * return value: * 0 on success - * -EINVAL if a NULL pointer is encountered somewhere * -EBUSY if another request is pending * any URB submission error code */ @@ -405,7 +446,7 @@ static int atread_submit(struct cardstate *cs, int timeout) gig_dbg(DEBUG_USBREQ, "-------> HD_READ_ATMESSAGE (%d)", ucs->rcvbuf_size); - if (ucs->urb_cmd_in->status == -EINPROGRESS) { + if (update_basstate(ucs, BS_ATRDPEND, 0) & BS_ATRDPEND) { dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: URB busy\n"); return -EBUSY; @@ -423,6 +464,7 @@ static int atread_submit(struct cardstate *cs, int timeout) read_ctrl_callback, cs->inbuf); if ((ret = usb_submit_urb(ucs->urb_cmd_in, SLAB_ATOMIC)) != 0) { + update_basstate(ucs, 0, BS_ATRDPEND); dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n", get_usb_statmsg(ret)); return ret; @@ -438,26 +480,6 @@ static int atread_submit(struct cardstate *cs, int timeout) return 0; } -static void stopurbs(struct bas_bc_state *); -static int start_cbsend(struct cardstate *); - -/* set/clear bits in base connection state - */ -inline static void update_basstate(struct bas_cardstate *ucs, - int set, int clear) -{ - unsigned long flags; - int state; - - spin_lock_irqsave(&ucs->lock, flags); - state = atomic_read(&ucs->basstate); - state &= ~clear; - state |= set; - atomic_set(&ucs->basstate, state); - spin_unlock_irqrestore(&ucs->lock, flags); -} - - /* read_int_callback * USB completion handler for interrupt pipe input * called by the USB subsystem in interrupt context @@ -471,20 +493,25 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) struct bas_cardstate *ucs = cs->hw.bas; struct bc_state *bcs; unsigned long flags; - int status; + int rc; unsigned l; int channel; switch (urb->status) { case 0: /* success */ break; - case -ENOENT: /* canceled */ - case -ECONNRESET: /* canceled (async) */ + case -ENOENT: /* cancelled */ + case -ECONNRESET: /* cancelled (async) */ case -EINPROGRESS: /* pending */ /* ignore silently */ gig_dbg(DEBUG_USBREQ, "%s: %s", __func__, get_usb_statmsg(urb->status)); return; + case -ENODEV: /* device removed */ + case -ESHUTDOWN: /* device shut down */ + //FIXME use this as disconnect indicator? + gig_dbg(DEBUG_USBREQ, "%s: device disconnected", __func__); + return; default: /* severe trouble */ dev_warn(cs->dev, "interrupt read: %s\n", get_usb_statmsg(urb->status)); @@ -492,6 +519,13 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) goto resubmit; } + /* drop incomplete packets even if the missing bytes wouldn't matter */ + if (unlikely(urb->actual_length < 3)) { + dev_warn(cs->dev, "incomplete interrupt packet (%d bytes)\n", + urb->actual_length); + goto resubmit; + } + l = (unsigned) ucs->int_in_buf[1] + (((unsigned) ucs->int_in_buf[2]) << 8); @@ -558,25 +592,28 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) } spin_lock_irqsave(&cs->lock, flags); if (ucs->rcvbuf_size) { - spin_unlock_irqrestore(&cs->lock, flags); + /* throw away previous buffer - we have no queue */ dev_err(cs->dev, - "receive AT data overrun, %d bytes lost\n", l); - error_reset(cs); //FIXME reschedule - break; + "receive AT data overrun, %d bytes lost\n", + ucs->rcvbuf_size); + kfree(ucs->rcvbuf); + ucs->rcvbuf_size = 0; } if ((ucs->rcvbuf = kmalloc(l, GFP_ATOMIC)) == NULL) { spin_unlock_irqrestore(&cs->lock, flags); - dev_err(cs->dev, "out of memory, %d bytes lost\n", l); - error_reset(cs); //FIXME reschedule + dev_err(cs->dev, "out of memory receiving AT data\n"); + error_reset(cs); break; } ucs->rcvbuf_size = l; ucs->retry_cmd_in = 0; - if ((status = atread_submit(cs, BAS_TIMEOUT)) < 0) { + if ((rc = atread_submit(cs, BAS_TIMEOUT)) < 0) { kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; - error_reset(cs); //FIXME reschedule + if (rc != -ENODEV) + //FIXME corrective action? + error_reset(cs); } spin_unlock_irqrestore(&cs->lock, flags); break; @@ -598,12 +635,10 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) check_pending(ucs); resubmit: - spin_lock_irqsave(&cs->lock, flags); - status = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; - spin_unlock_irqrestore(&cs->lock, flags); - if (unlikely(status)) { + rc = usb_submit_urb(urb, SLAB_ATOMIC); + if (unlikely(rc != 0 && rc != -ENODEV)) { dev_err(cs->dev, "could not resubmit interrupt URB: %s\n", - get_usb_statmsg(status)); + get_usb_rcmsg(rc)); error_reset(cs); } } @@ -622,18 +657,12 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) struct bas_cardstate *ucs = cs->hw.bas; int have_data = 0; unsigned numbytes; - unsigned long flags; + int rc; - spin_lock_irqsave(&cs->lock, flags); - if (unlikely(!cs->connected)) { - warn("%s: disconnected", __func__); - spin_unlock_irqrestore(&cs->lock, flags); - return; - } + update_basstate(ucs, 0, BS_ATRDPEND); if (!ucs->rcvbuf_size) { dev_warn(cs->dev, "%s: no receive in progress\n", __func__); - spin_unlock_irqrestore(&cs->lock, flags); return; } @@ -666,9 +695,11 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) } break; - case -ENOENT: /* canceled */ - case -ECONNRESET: /* canceled (async) */ + case -ENOENT: /* cancelled */ + case -ECONNRESET: /* cancelled (async) */ case -EINPROGRESS: /* pending */ + case -ENODEV: /* device removed */ + case -ESHUTDOWN: /* device shut down */ /* no action necessary */ gig_dbg(DEBUG_USBREQ, "%s: %s", __func__, get_usb_statmsg(urb->status)); @@ -681,11 +712,11 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) if (ucs->retry_cmd_in++ < BAS_RETRY) { dev_notice(cs->dev, "control read: retry %d\n", ucs->retry_cmd_in); - if (atread_submit(cs, BAS_TIMEOUT) >= 0) { - /* resubmitted - bypass regular exit block */ - spin_unlock_irqrestore(&cs->lock, flags); + rc = atread_submit(cs, BAS_TIMEOUT); + if (rc >= 0 || rc == -ENODEV) + /* resubmitted or disconnected */ + /* - bypass regular exit block */ return; - } } else { dev_err(cs->dev, "control read: giving up after %d tries\n", @@ -697,7 +728,6 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; - spin_unlock_irqrestore(&cs->lock, flags); if (have_data) { gig_dbg(DEBUG_INTR, "%s-->BH", __func__); gigaset_schedule_event(cs); @@ -719,8 +749,11 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs) int i, rc; /* status codes not worth bothering the tasklet with */ - if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -EINPROGRESS)) { + if (unlikely(urb->status == -ENOENT || + urb->status == -ECONNRESET || + urb->status == -EINPROGRESS || + urb->status == -ENODEV || + urb->status == -ESHUTDOWN)) { gig_dbg(DEBUG_ISO, "%s: %s", __func__, get_usb_statmsg(urb->status)); return; @@ -740,9 +773,9 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs) for (i = 0; i < BAS_NUMFRAMES; i++) { ubc->isoinlost += urb->iso_frame_desc[i].actual_length; if (unlikely(urb->iso_frame_desc[i].status != 0 && - urb->iso_frame_desc[i].status != -EINPROGRESS)) { + urb->iso_frame_desc[i].status != + -EINPROGRESS)) ubc->loststatus = urb->iso_frame_desc[i].status; - } urb->iso_frame_desc[i].status = 0; urb->iso_frame_desc[i].actual_length = 0; } @@ -754,10 +787,10 @@ static void read_iso_callback(struct urb *urb, struct pt_regs *regs) gig_dbg(DEBUG_ISO, "%s: isoc read overrun/resubmit", __func__); rc = usb_submit_urb(urb, SLAB_ATOMIC); - if (unlikely(rc != 0)) { + if (unlikely(rc != 0 && rc != -ENODEV)) { dev_err(bcs->cs->dev, "could not resubmit isochronous read " - "URB: %s\n", get_usb_statmsg(rc)); + "URB: %s\n", get_usb_rcmsg(rc)); dump_urb(DEBUG_ISO, "isoc read", urb); error_hangup(bcs); } @@ -780,8 +813,11 @@ static void write_iso_callback(struct urb *urb, struct pt_regs *regs) unsigned long flags; /* status codes not worth bothering the tasklet with */ - if (unlikely(urb->status == -ENOENT || urb->status == -ECONNRESET || - urb->status == -EINPROGRESS)) { + if (unlikely(urb->status == -ENOENT || + urb->status == -ECONNRESET || + urb->status == -EINPROGRESS || + urb->status == -ENODEV || + urb->status == -ESHUTDOWN)) { gig_dbg(DEBUG_ISO, "%s: %s", __func__, get_usb_statmsg(urb->status)); return; @@ -822,7 +858,6 @@ static int starturbs(struct bc_state *bcs) for (k = 0; k < BAS_INURBS; k++) { urb = ubc->isoinurbs[k]; if (!urb) { - dev_err(bcs->cs->dev, "isoinurbs[%d]==NULL\n", k); rc = -EFAULT; goto error; } @@ -844,12 +879,8 @@ static int starturbs(struct bc_state *bcs) } dump_urb(DEBUG_ISO, "Initial isoc read", urb); - if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { - dev_err(bcs->cs->dev, - "could not submit isochronous read URB %d: %s\n", - k, get_usb_statmsg(rc)); + if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) goto error; - } } /* initialize L2 transmission */ @@ -859,7 +890,6 @@ static int starturbs(struct bc_state *bcs) for (k = 0; k < BAS_OUTURBS; ++k) { urb = ubc->isoouturbs[k].urb; if (!urb) { - dev_err(bcs->cs->dev, "isoouturbs[%d].urb==NULL\n", k); rc = -EFAULT; goto error; } @@ -885,12 +915,8 @@ static int starturbs(struct bc_state *bcs) for (k = 0; k < 2; ++k) { dump_urb(DEBUG_ISO, "Initial isoc write", urb); rc = usb_submit_urb(ubc->isoouturbs[k].urb, SLAB_ATOMIC); - if (rc != 0) { - dev_err(bcs->cs->dev, - "could not submit isochronous write URB %d: %s\n", - k, get_usb_statmsg(rc)); + if (rc != 0) goto error; - } } dump_urb(DEBUG_ISO, "Initial isoc write (free)", urb); ubc->isooutfree = &ubc->isoouturbs[2]; @@ -916,15 +942,15 @@ static void stopurbs(struct bas_bc_state *ubc) for (k = 0; k < BAS_INURBS; ++k) { rc = usb_unlink_urb(ubc->isoinurbs[k]); gig_dbg(DEBUG_ISO, - "%s: isoc input URB %d unlinked, result = %d", - __func__, k, rc); + "%s: isoc input URB %d unlinked, result = %s", + __func__, k, get_usb_rcmsg(rc)); } for (k = 0; k < BAS_OUTURBS; ++k) { rc = usb_unlink_urb(ubc->isoouturbs[k].urb); gig_dbg(DEBUG_ISO, - "%s: isoc output URB %d unlinked, result = %d", - __func__, k, rc); + "%s: isoc output URB %d unlinked, result = %s", + __func__, k, get_usb_rcmsg(rc)); } } @@ -934,7 +960,7 @@ static void stopurbs(struct bas_bc_state *ubc) /* submit_iso_write_urb * fill and submit the next isochronous write URB * parameters: - * bcs B channel state structure + * ucx context structure containing URB * return value: * number of frames submitted in URB * 0 if URB not submitted because no data available (isooutbuf busy) @@ -946,7 +972,6 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) struct bas_bc_state *ubc = ucx->bcs->hw.bas; struct usb_iso_packet_descriptor *ifd; int corrbytes, nframe, rc; - unsigned long flags; /* urb->dev is clobbered by USB subsystem */ urb->dev = ucx->bcs->cs->hw.bas->udev; @@ -992,20 +1017,22 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) ifd->status = 0; ifd->actual_length = 0; } - if ((urb->number_of_packets = nframe) > 0) { - spin_lock_irqsave(&ucx->bcs->cs->lock, flags); - rc = ucx->bcs->cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; - spin_unlock_irqrestore(&ucx->bcs->cs->lock, flags); + if (unlikely(nframe == 0)) + return 0; /* no data to send */ + urb->number_of_packets = nframe; - if (rc) { + rc = usb_submit_urb(urb, SLAB_ATOMIC); + if (unlikely(rc)) { + if (rc == -ENODEV) + /* device removed - give up silently */ + gig_dbg(DEBUG_ISO, "%s: disconnected", __func__); + else dev_err(ucx->bcs->cs->dev, "could not submit isochronous write URB: %s\n", - get_usb_statmsg(rc)); - dump_urb(DEBUG_ISO, "isoc write", urb); - return rc; - } - ++ubc->numsub; + get_usb_rcmsg(rc)); + return rc; } + ++ubc->numsub; return nframe; } @@ -1028,6 +1055,7 @@ static void write_iso_tasklet(unsigned long data) int i; struct sk_buff *skb; int len; + int rc; /* loop while completed URBs arrive in time */ for (;;) { @@ -1057,7 +1085,8 @@ static void write_iso_tasklet(unsigned long data) ubc->isooutfree = NULL; spin_unlock_irqrestore(&ubc->isooutlock, flags); if (next) { - if (submit_iso_write_urb(next) <= 0) { + rc = submit_iso_write_urb(next); + if (unlikely(rc <= 0 && rc != -ENODEV)) { /* could not submit URB, put it back */ spin_lock_irqsave(&ubc->isooutlock, flags); if (ubc->isooutfree == NULL) { @@ -1077,17 +1106,18 @@ static void write_iso_tasklet(unsigned long data) /* process completed URB */ urb = done->urb; switch (urb->status) { + case -EXDEV: /* partial completion */ + gig_dbg(DEBUG_ISO, "%s: URB partially completed", + __func__); + /* fall through - what's the difference anyway? */ case 0: /* normal completion */ - break; - case -EXDEV: /* inspect individual frames */ - /* assumptions (for lack of documentation): - * - actual_length bytes of the frame in error are + /* inspect individual frames + * assumptions (for lack of documentation): + * - actual_length bytes of first frame in error are * successfully sent * - all following frames are not sent at all */ - gig_dbg(DEBUG_ISO, "%s: URB partially completed", - __func__); - offset = done->limit; /* just in case */ + offset = done->limit; /* default (no error) */ for (i = 0; i < BAS_NUMFRAMES; i++) { ifd = &urb->iso_frame_desc[i]; if (ifd->status || @@ -1122,7 +1152,7 @@ static void write_iso_tasklet(unsigned long data) } #endif break; - case -EPIPE: //FIXME is this the code for "underrun"? + case -EPIPE: /* stall - probably underrun */ dev_err(cs->dev, "isochronous write stalled\n"); error_hangup(bcs); break; @@ -1142,7 +1172,8 @@ static void write_iso_tasklet(unsigned long data) spin_unlock_irqrestore(&ubc->isooutlock, flags); if (next) { /* only one URB still active - resubmit one */ - if (submit_iso_write_urb(next) <= 0) { + rc = submit_iso_write_urb(next); + if (unlikely(rc <= 0 && rc != -ENODEV)) { /* couldn't submit */ error_hangup(bcs); } @@ -1222,10 +1253,9 @@ static void read_iso_tasklet(unsigned long data) break; case -ENOENT: case -ECONNRESET: - gig_dbg(DEBUG_ISO, "%s: URB canceled", __func__); - continue; /* -> skip */ - case -EINPROGRESS: /* huh? */ - gig_dbg(DEBUG_ISO, "%s: URB still pending", __func__); + case -EINPROGRESS: + gig_dbg(DEBUG_ISO, "%s: %s", + __func__, get_usb_statmsg(urb->status)); continue; /* -> skip */ case -EPIPE: dev_err(cs->dev, "isochronous read stalled\n"); @@ -1290,13 +1320,11 @@ static void read_iso_tasklet(unsigned long data) urb->dev = bcs->cs->hw.bas->udev; urb->transfer_flags = URB_ISO_ASAP; urb->number_of_packets = BAS_NUMFRAMES; - spin_lock_irqsave(&cs->lock, flags); - rc = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; - spin_unlock_irqrestore(&cs->lock, flags); - if (rc) { + rc = usb_submit_urb(urb, SLAB_ATOMIC); + if (unlikely(rc != 0 && rc != -ENODEV)) { dev_err(cs->dev, "could not resubmit isochronous read URB: %s\n", - get_usb_statmsg(rc)); + get_usb_rcmsg(rc)); dump_urb(DEBUG_ISO, "resubmit iso read", urb); error_hangup(bcs); } @@ -1397,7 +1425,6 @@ static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs) * timeout timeout in seconds (0: no timeout) * return value: * 0 on success - * -EINVAL if a NULL pointer is encountered somewhere * -EBUSY if another request is pending * any URB submission error code */ @@ -1418,12 +1445,6 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout) req, ucs->pending); return -EBUSY; } - if (ucs->urb_ctrl->status == -EINPROGRESS) { - spin_unlock_irqrestore(&ucs->lock, flags); - dev_err(bcs->cs->dev, - "could not submit request 0x%02x: URB busy\n", req); - return -EBUSY; - } ucs->dr_ctrl.bRequestType = OUT_VENDOR_REQ; ucs->dr_ctrl.bRequest = req; @@ -1465,22 +1486,36 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout) static int gigaset_init_bchannel(struct bc_state *bcs) { int req, ret; + unsigned long flags; + + spin_lock_irqsave(&bcs->cs->lock, flags); + if (unlikely(!bcs->cs->connected)) { + gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__); + spin_unlock_irqrestore(&bcs->cs->lock, flags); + return -ENODEV; + } if ((ret = starturbs(bcs)) < 0) { dev_err(bcs->cs->dev, - "could not start isochronous I/O for channel %d\n", - bcs->channel + 1); - error_hangup(bcs); + "could not start isochronous I/O for channel B%d: %s\n", + bcs->channel + 1, + ret == -EFAULT ? "null URB" : get_usb_rcmsg(ret)); + if (ret != -ENODEV) + error_hangup(bcs); + spin_unlock_irqrestore(&bcs->cs->lock, flags); return ret; } req = bcs->channel ? HD_OPEN_B2CHANNEL : HD_OPEN_B1CHANNEL; if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) { - dev_err(bcs->cs->dev, "could not open channel %d: %s\n", - bcs->channel + 1, get_usb_statmsg(ret)); + dev_err(bcs->cs->dev, "could not open channel B%d\n", + bcs->channel + 1); stopurbs(bcs->hw.bas); - error_hangup(bcs); + if (ret != -ENODEV) + error_hangup(bcs); } + + spin_unlock_irqrestore(&bcs->cs->lock, flags); return ret; } @@ -1497,19 +1532,30 @@ static int gigaset_init_bchannel(struct bc_state *bcs) static int gigaset_close_bchannel(struct bc_state *bcs) { int req, ret; + unsigned long flags; + + spin_lock_irqsave(&bcs->cs->lock, flags); + if (unlikely(!bcs->cs->connected)) { + spin_unlock_irqrestore(&bcs->cs->lock, flags); + gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__); + return -ENODEV; + } if (!(atomic_read(&bcs->cs->hw.bas->basstate) & (bcs->channel ? BS_B2OPEN : BS_B1OPEN))) { /* channel not running: just signal common.c */ + spin_unlock_irqrestore(&bcs->cs->lock, flags); gigaset_bchannel_down(bcs); return 0; } + /* channel running: tell device to close it */ req = bcs->channel ? HD_CLOSE_B2CHANNEL : HD_CLOSE_B1CHANNEL; if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) - dev_err(bcs->cs->dev, - "could not submit HD_CLOSE_BxCHANNEL request: %s\n", - get_usb_statmsg(ret)); + dev_err(bcs->cs->dev, "closing channel B%d failed\n", + bcs->channel + 1); + + spin_unlock_irqrestore(&bcs->cs->lock, flags); return ret; } @@ -1545,8 +1591,6 @@ static void complete_cb(struct cardstate *cs) kfree(cb); } -static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len); - /* write_command_callback * USB completion handler for AT command transmission * called by the USB subsystem in interrupt context @@ -1560,13 +1604,17 @@ static void write_command_callback(struct urb *urb, struct pt_regs *regs) struct bas_cardstate *ucs = cs->hw.bas; unsigned long flags; + update_basstate(ucs, 0, BS_ATWRPEND); + /* check status */ switch (urb->status) { case 0: /* normal completion */ break; - case -ENOENT: /* canceled */ - case -ECONNRESET: /* canceled (async) */ + case -ENOENT: /* cancelled */ + case -ECONNRESET: /* cancelled (async) */ case -EINPROGRESS: /* pending */ + case -ENODEV: /* device removed */ + case -ESHUTDOWN: /* device shut down */ /* ignore silently */ gig_dbg(DEBUG_USBREQ, "%s: %s", __func__, get_usb_statmsg(urb->status)); @@ -1627,19 +1675,17 @@ static void atrdy_timeout(unsigned long data) * len length of command to send * return value: * 0 on success - * -EFAULT if a NULL pointer is encountered somewhere * -EBUSY if another request is pending * any URB submission error code */ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) { struct bas_cardstate *ucs = cs->hw.bas; - unsigned long flags; - int ret; + int rc; gig_dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len); - if (ucs->urb_cmd_out->status == -EINPROGRESS) { + if (update_basstate(ucs, BS_ATWRPEND, 0) & BS_ATWRPEND) { dev_err(cs->dev, "could not submit HD_WRITE_ATMESSAGE: URB busy\n"); return -EBUSY; @@ -1654,29 +1700,22 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) usb_sndctrlpipe(ucs->udev, 0), (unsigned char*) &ucs->dr_cmd_out, buf, len, write_command_callback, cs); - - spin_lock_irqsave(&cs->lock, flags); - ret = cs->connected ? usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC) : -ENODEV; - spin_unlock_irqrestore(&cs->lock, flags); - - if (ret) { + rc = usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC); + if (unlikely(rc)) { + update_basstate(ucs, 0, BS_ATWRPEND); dev_err(cs->dev, "could not submit HD_WRITE_ATMESSAGE: %s\n", - get_usb_statmsg(ret)); - return ret; + get_usb_rcmsg(rc)); + return rc; } - /* submitted successfully */ - update_basstate(ucs, 0, BS_ATREADY); - - /* start timeout if necessary */ - if (!(atomic_read(&ucs->basstate) & BS_ATTIMER)) { + /* submitted successfully, start timeout if necessary */ + if (!(update_basstate(ucs, BS_ATTIMER, BS_ATREADY) & BS_ATTIMER)) { gig_dbg(DEBUG_OUTPUT, "setting ATREADY timeout of %d/10 secs", ATRDY_TIMEOUT); ucs->timer_atrdy.expires = jiffies + ATRDY_TIMEOUT * HZ / 10; ucs->timer_atrdy.data = (unsigned long) cs; ucs->timer_atrdy.function = atrdy_timeout; add_timer(&ucs->timer_atrdy); - update_basstate(ucs, BS_ATTIMER, 0); } return 0; } @@ -1702,7 +1741,6 @@ static int start_cbsend(struct cardstate *cs) gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD, "AT channel not open"); rc = req_submit(cs->bcs, HD_OPEN_ATCHANNEL, 0, BAS_TIMEOUT); if (rc < 0) { - dev_err(cs->dev, "could not open AT channel\n"); /* flush command queue */ spin_lock_irqsave(&cs->cmdlock, flags); while (cs->cmdbuf != NULL) @@ -1786,8 +1824,14 @@ static int gigaset_write_cmd(struct cardstate *cs, cs->lastcmdbuf = cb; spin_unlock_irqrestore(&cs->cmdlock, flags); + spin_lock_irqsave(&cs->lock, flags); + if (unlikely(!cs->connected)) { + spin_unlock_irqrestore(&cs->lock, flags); + gig_dbg(DEBUG_USBREQ, "%s: not connected", __func__); + return -ENODEV; + } status = start_cbsend(cs); - + spin_unlock_irqrestore(&cs->lock, flags); return status < 0 ? status : len; } @@ -1849,12 +1893,32 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6]) */ static int gigaset_freebcshw(struct bc_state *bcs) { - if (!bcs->hw.bas) + struct bas_bc_state *ubc = bcs->hw.bas; + int i; + + if (!ubc) return 0; - if (bcs->hw.bas->isooutbuf) - kfree(bcs->hw.bas->isooutbuf); - kfree(bcs->hw.bas); + /* kill URBs and tasklets before freeing - better safe than sorry */ + atomic_set(&ubc->running, 0); + for (i = 0; i < BAS_OUTURBS; ++i) + if (ubc->isoouturbs[i].urb) { + gig_dbg(DEBUG_INIT, "%s: killing iso out URB %d", + __func__, i); + usb_kill_urb(ubc->isoouturbs[i].urb); + usb_free_urb(ubc->isoouturbs[i].urb); + } + for (i = 0; i < BAS_INURBS; ++i) + if (ubc->isoinurbs[i]) { + gig_dbg(DEBUG_INIT, "%s: killing iso in URB %d", + __func__, i); + usb_kill_urb(ubc->isoinurbs[i]); + usb_free_urb(ubc->isoinurbs[i]); + } + tasklet_kill(&ubc->sent_tasklet); + tasklet_kill(&ubc->rcvd_tasklet); + kfree(ubc->isooutbuf); + kfree(ubc); bcs->hw.bas = NULL; return 1; } @@ -1931,13 +1995,9 @@ static void gigaset_reinitbcshw(struct bc_state *bcs) static void gigaset_freecshw(struct cardstate *cs) { - struct bas_cardstate *ucs = cs->hw.bas; - - del_timer(&ucs->timer_ctrl); - del_timer(&ucs->timer_atrdy); - del_timer(&ucs->timer_cmd_in); - + /* timers, URBs and rcvbuf are disposed of in disconnect */ kfree(cs->hw.bas); + cs->hw.bas = NULL; } static int gigaset_initcshw(struct cardstate *cs) @@ -2041,23 +2101,13 @@ static int gigaset_probe(struct usb_interface *interface, struct bas_bc_state *ubc; struct usb_endpoint_descriptor *endpoint; int i, j; - int ret; + int rc; gig_dbg(DEBUG_ANY, "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)", __func__, le16_to_cpu(udev->descriptor.idVendor), le16_to_cpu(udev->descriptor.idProduct)); - /* See if the device offered us matches what we can accept */ - if ((le16_to_cpu(udev->descriptor.idVendor) != USB_GIGA_VENDOR_ID) || - (le16_to_cpu(udev->descriptor.idProduct) != USB_GIGA_PRODUCT_ID && - le16_to_cpu(udev->descriptor.idProduct) != USB_4175_PRODUCT_ID && - le16_to_cpu(udev->descriptor.idProduct) != USB_SX303_PRODUCT_ID && - le16_to_cpu(udev->descriptor.idProduct) != USB_SX353_PRODUCT_ID)) { - gig_dbg(DEBUG_ANY, "%s: unmatched ID - exiting", __func__); - return -ENODEV; - } - /* set required alternate setting */ hostif = interface->cur_altsetting; if (hostif->desc.bAlternateSetting != 3) { @@ -2105,45 +2155,22 @@ static int gigaset_probe(struct usb_interface *interface, * - three for the different uses of the default control pipe * - three for each isochronous pipe */ - ucs->urb_int_in = usb_alloc_urb(0, SLAB_KERNEL); - if (!ucs->urb_int_in) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } - ucs->urb_cmd_in = usb_alloc_urb(0, SLAB_KERNEL); - if (!ucs->urb_cmd_in) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } - ucs->urb_cmd_out = usb_alloc_urb(0, SLAB_KERNEL); - if (!ucs->urb_cmd_out) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } - ucs->urb_ctrl = usb_alloc_urb(0, SLAB_KERNEL); - if (!ucs->urb_ctrl) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } + if (!(ucs->urb_int_in = usb_alloc_urb(0, SLAB_KERNEL)) || + !(ucs->urb_cmd_in = usb_alloc_urb(0, SLAB_KERNEL)) || + !(ucs->urb_cmd_out = usb_alloc_urb(0, SLAB_KERNEL)) || + !(ucs->urb_ctrl = usb_alloc_urb(0, SLAB_KERNEL))) + goto allocerr; for (j = 0; j < 2; ++j) { ubc = cs->bcs[j].hw.bas; - for (i = 0; i < BAS_OUTURBS; ++i) { - ubc->isoouturbs[i].urb = - usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL); - if (!ubc->isoouturbs[i].urb) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } - } - for (i = 0; i < BAS_INURBS; ++i) { - ubc->isoinurbs[i] = - usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL); - if (!ubc->isoinurbs[i]) { - dev_err(cs->dev, "no free urbs available\n"); - goto error; - } - } + for (i = 0; i < BAS_OUTURBS; ++i) + if (!(ubc->isoouturbs[i].urb = + usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL))) + goto allocerr; + for (i = 0; i < BAS_INURBS; ++i) + if (!(ubc->isoinurbs[i] = + usb_alloc_urb(BAS_NUMFRAMES, SLAB_KERNEL))) + goto allocerr; } ucs->rcvbuf = NULL; @@ -2156,15 +2183,14 @@ static int gigaset_probe(struct usb_interface *interface, (endpoint->bEndpointAddress) & 0x0f), ucs->int_in_buf, 3, read_int_callback, cs, endpoint->bInterval); - ret = usb_submit_urb(ucs->urb_int_in, SLAB_KERNEL); - if (ret) { + if ((rc = usb_submit_urb(ucs->urb_int_in, SLAB_KERNEL)) != 0) { dev_err(cs->dev, "could not submit interrupt URB: %s\n", - get_usb_statmsg(ret)); + get_usb_rcmsg(rc)); goto error; } /* tell the device that the driver is ready */ - if ((ret = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0)) != 0) + if ((rc = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0)) != 0) goto error; /* tell common part that the device is ready */ @@ -2179,6 +2205,8 @@ static int gigaset_probe(struct usb_interface *interface, return 0; +allocerr: + dev_err(cs->dev, "could not allocate URBs\n"); error: freeurbs(cs); usb_set_intfdata(interface, NULL); @@ -2193,19 +2221,34 @@ static void gigaset_disconnect(struct usb_interface *interface) { struct cardstate *cs; struct bas_cardstate *ucs; + int j; cs = usb_get_intfdata(interface); ucs = cs->hw.bas; dev_info(cs->dev, "disconnecting Gigaset base\n"); + + /* mark base as not ready, all channels disconnected */ + atomic_set(&ucs->basstate, 0); + + /* tell LL all channels are down */ + //FIXME shouldn't gigaset_stop() do this? + for (j = 0; j < 2; ++j) + gigaset_bchannel_down(cs->bcs + j); + + /* stop driver (common part) */ gigaset_stop(cs); + + /* stop timers and URBs, free ressources */ + del_timer_sync(&ucs->timer_ctrl); + del_timer_sync(&ucs->timer_atrdy); + del_timer_sync(&ucs->timer_cmd_in); freeurbs(cs); usb_set_intfdata(interface, NULL); kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; - atomic_set(&ucs->basstate, 0); usb_put_dev(ucs->udev); ucs->interface = NULL; ucs->udev = NULL; @@ -2277,6 +2320,8 @@ error: if (cardstate) */ static void __exit bas_gigaset_exit(void) { + struct bas_cardstate *ucs = cardstate->hw.bas; + gigaset_blockdriver(driver); /* => probe will fail * => no gigaset_start any more */ @@ -2284,14 +2329,26 @@ static void __exit bas_gigaset_exit(void) gigaset_shutdown(cardstate); /* from now on, no isdn callback should be possible */ - if (atomic_read(&cardstate->hw.bas->basstate) & BS_ATOPEN) { - gig_dbg(DEBUG_ANY, "closing AT channel"); - if (req_submit(cardstate->bcs, - HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT) >= 0) { - /* successfully submitted */ - //FIXME wait for completion? - } + /* close all still open channels */ + if (atomic_read(&ucs->basstate) & BS_B1OPEN) { + gig_dbg(DEBUG_INIT, "closing B1 channel"); + usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0), + HD_CLOSE_B1CHANNEL, OUT_VENDOR_REQ, 0, 0, + NULL, 0, BAS_TIMEOUT); + } + if (atomic_read(&ucs->basstate) & BS_B2OPEN) { + gig_dbg(DEBUG_INIT, "closing B2 channel"); + usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0), + HD_CLOSE_B2CHANNEL, OUT_VENDOR_REQ, 0, 0, + NULL, 0, BAS_TIMEOUT); + } + if (atomic_read(&ucs->basstate) & BS_ATOPEN) { + gig_dbg(DEBUG_INIT, "closing AT channel"); + usb_control_msg(ucs->udev, usb_sndctrlpipe(ucs->udev, 0), + HD_CLOSE_ATCHANNEL, OUT_VENDOR_REQ, 0, 0, + NULL, 0, BAS_TIMEOUT); } + atomic_set(&ucs->basstate, 0); /* deregister this driver with the USB subsystem */ usb_deregister(&gigaset_usb_driver); diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 749b3da1236..e55767b2ccd 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -781,8 +781,7 @@ error: if (cs) } EXPORT_SYMBOL_GPL(gigaset_initcs); -/* ReInitialize the b-channel structure */ -/* e.g. called on hangup, disconnect */ +/* ReInitialize the b-channel structure on hangup */ void gigaset_bcs_reinit(struct bc_state *bcs) { struct sk_buff *skb; diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c index 1ba3424a286..18e05c09b71 100644 --- a/drivers/isdn/gigaset/ev-layer.c +++ b/drivers/isdn/gigaset/ev-layer.c @@ -373,6 +373,9 @@ struct reply_t gigaset_tab_cid_m10x[] = /* for M10x */ {EV_TIMEOUT, 750,750, -1, 0, 0, {ACT_CONNTIMEOUT}}, + /* B channel closed (general case) */ + {EV_BC_CLOSED, -1, -1, -1, -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME + /* misc. */ {EV_PROTO_L2, -1, -1, -1, -1,-1, {ACT_PROTO_L2}}, //FIXME diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h index 9d21ba8757b..22b9693f7c0 100644 --- a/drivers/isdn/gigaset/gigaset.h +++ b/drivers/isdn/gigaset/gigaset.h @@ -75,7 +75,7 @@ extern int gigaset_debuglevel; /* "needs" cast to (enum debuglevel) */ * e.g. 'insmod usb_gigaset.o debug=0x2c' will set DEBUG_OPEN, DEBUG_CMD and * DEBUG_INTR. */ -enum debuglevel { /* up to 24 bits (atomic_t) */ +enum debuglevel { DEBUG_REG = 0x0002, /* serial port I/O register operations */ DEBUG_OPEN = 0x0004, /* open/close serial port */ DEBUG_INTR = 0x0008, /* interrupt processing */ @@ -141,7 +141,7 @@ enum debuglevel { /* up to 24 bits (atomic_t) */ printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \ ## arg); \ } while (0) -#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ) +#define DEBUG_DEFAULT (DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ) #else @@ -627,8 +627,7 @@ struct gigaset_ops { /* Called by gigaset_freecs() for freeing bcs->hw.xxx */ int (*freebcshw)(struct bc_state *bcs); - /* Called by gigaset_stop() or gigaset_bchannel_down() for resetting - bcs->hw.xxx */ + /* Called by gigaset_bchannel_down() for resetting bcs->hw.xxx */ void (*reinitbcshw)(struct bc_state *bcs); /* Called by gigaset_initcs() for setting up cs->hw.xxx */ diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c index 0815dbfb829..1654fa41357 100644 --- a/drivers/isdn/gigaset/i4l.c +++ b/drivers/isdn/gigaset/i4l.c @@ -73,7 +73,7 @@ static int writebuf_from_LL(int driverID, int channel, int ack, len, skblen, (unsigned) skb->head[0], (unsigned) skb->head[1]); /* pass to device-specific module */ - return cs->ops->send_skb(bcs, skb); //FIXME cs->ops->send_skb() must handle !cs->connected correctly + return cs->ops->send_skb(bcs, skb); } void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb) diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c index 45f017ed6e8..8667daaa1a8 100644 --- a/drivers/isdn/gigaset/isocdata.c +++ b/drivers/isdn/gigaset/isocdata.c @@ -992,14 +992,18 @@ int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb) int len = skb->len; unsigned long flags; + spin_lock_irqsave(&bcs->cs->lock, flags); + if (!bcs->cs->connected) { + spin_unlock_irqrestore(&bcs->cs->lock, flags); + return -ENODEV; + } + skb_queue_tail(&bcs->squeue, skb); gig_dbg(DEBUG_ISO, "%s: skb queued, qlen=%d", __func__, skb_queue_len(&bcs->squeue)); /* tasklet submits URB if necessary */ - spin_lock_irqsave(&bcs->cs->lock, flags); - if (bcs->cs->connected) - tasklet_schedule(&bcs->hw.bas->sent_tasklet); + tasklet_schedule(&bcs->hw.bas->sent_tasklet); spin_unlock_irqrestore(&bcs->cs->lock, flags); return len; /* ok so far */ diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index 5ebfd1d138d..5282fec1707 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -627,8 +627,8 @@ thermostat_init(void) if(therm_type == ADT7460) device_create_file(&of_dev->dev, &dev_attr_sensor2_fan_speed); -#ifndef CONFIG_I2C_KEYWEST - request_module("i2c-keywest"); +#ifndef CONFIG_I2C_POWERMAC + request_module("i2c-powermac"); #endif return i2c_add_driver(&thermostat_driver); diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index 506e777c5f0..d090df41304 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -1639,6 +1639,7 @@ static struct pcmcia_device_id pcnet_ids[] = { PCMCIA_DEVICE_PROD_ID12("CONTEC", "C-NET(PC)C-10L", 0x21cab552, 0xf6f90722), PCMCIA_DEVICE_PROD_ID12("corega", "FEther PCC-TXF", 0x0a21501a, 0xa51564a2), PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-T", 0x5261440f, 0xfa9d85bd), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-TD", 0x5261440f, 0xc49bd73d), PCMCIA_DEVICE_PROD_ID12("Corega K.K.", "corega EtherII PCC-TD", 0xd4fdcbd8, 0xc49bd73d), PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether PCC-T", 0x5261440f, 0x6705fcaa), PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FastEther PCC-TX", 0x5261440f, 0x485e85d9), diff --git a/drivers/net/sungem_phy.c b/drivers/net/sungem_phy.c index cb0aba95d4e..046371ee5bb 100644 --- a/drivers/net/sungem_phy.c +++ b/drivers/net/sungem_phy.c @@ -275,7 +275,7 @@ static int bcm5411_init(struct mii_phy* phy) return 0; } -static int bcm5411_suspend(struct mii_phy* phy) +static int generic_suspend(struct mii_phy* phy) { phy_write(phy, MII_BMCR, BMCR_PDOWN); @@ -738,7 +738,7 @@ static struct mii_phy_def bcm5401_phy_def = { /* Broadcom BCM 5411 */ static struct mii_phy_ops bcm5411_phy_ops = { .init = bcm5411_init, - .suspend = bcm5411_suspend, + .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, .poll_link = genmii_poll_link, @@ -757,7 +757,7 @@ static struct mii_phy_def bcm5411_phy_def = { /* Broadcom BCM 5421 */ static struct mii_phy_ops bcm5421_phy_ops = { .init = bcm5421_init, - .suspend = bcm5411_suspend, + .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, .poll_link = genmii_poll_link, @@ -776,7 +776,7 @@ static struct mii_phy_def bcm5421_phy_def = { /* Broadcom BCM 5421 built-in K2 */ static struct mii_phy_ops bcm5421k2_phy_ops = { .init = bcm5421_init, - .suspend = bcm5411_suspend, + .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, .poll_link = genmii_poll_link, @@ -795,7 +795,7 @@ static struct mii_phy_def bcm5421k2_phy_def = { /* Broadcom BCM 5462 built-in Vesta */ static struct mii_phy_ops bcm5462V_phy_ops = { .init = bcm5421_init, - .suspend = bcm5411_suspend, + .suspend = generic_suspend, .setup_aneg = bcm54xx_setup_aneg, .setup_forced = bcm54xx_setup_forced, .poll_link = genmii_poll_link, @@ -816,6 +816,7 @@ static struct mii_phy_def bcm5462V_phy_def = { * would be useful here) --BenH. */ static struct mii_phy_ops marvell_phy_ops = { + .suspend = generic_suspend, .setup_aneg = marvell_setup_aneg, .setup_forced = marvell_setup_forced, .poll_link = genmii_poll_link, diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index 4e53be9c03a..bbeabe3fc4c 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -535,7 +535,7 @@ pdcs_auto_read(struct subsystem *entry, char *buf, int knob) { char *out = buf; struct pdcspath_entry *pathentry; - + if (!entry || !buf) return -EINVAL; diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 42b32ff2fca..278f325021e 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -178,6 +178,11 @@ extern struct proc_dir_entry * proc_mckinley_root; #define ROPE6_CTL 0x230 #define ROPE7_CTL 0x238 +#define IOC_ROPE0_CFG 0x500 /* pluto only */ +#define IOC_ROPE_AO 0x10 /* Allow "Relaxed Ordering" */ + + + #define HF_ENABLE 0x40 @@ -1759,19 +1764,33 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa, sba_dev->num_ioc = num_ioc; for (i = 0; i < num_ioc; i++) { - /* - ** Make sure the box crashes if we get any errors on a rope. - */ - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE0_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE1_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE2_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE3_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE4_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE5_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE6_CTL); - WRITE_REG(HF_ENABLE, sba_dev->ioc[i].ioc_hpa + ROPE7_CTL); - - /* flush out the writes */ + unsigned long ioc_hpa = sba_dev->ioc[i].ioc_hpa; + unsigned int j; + + for (j=0; j < sizeof(u64) * ROPES_PER_IOC; j+=sizeof(u64)) { + + /* + * Clear ROPE(N)_CONFIG AO bit. + * Disables "NT Ordering" (~= !"Relaxed Ordering") + * Overrides bit 1 in DMA Hint Sets. + * Improves netperf UDP_STREAM by ~10% for bcm5701. + */ + if (IS_PLUTO(sba_dev->iodc)) { + unsigned long rope_cfg, cfg_val; + + rope_cfg = ioc_hpa + IOC_ROPE0_CFG + j; + cfg_val = READ_REG(rope_cfg); + cfg_val &= ~IOC_ROPE_AO; + WRITE_REG(cfg_val, rope_cfg); + } + + /* + ** Make sure the box crashes on rope errors. + */ + WRITE_REG(HF_ENABLE, ioc_hpa + ROPE0_CTL + j); + } + + /* flush out the last writes */ READ_REG(sba_dev->ioc[i].ioc_hpa + ROPE7_CTL); DBG_INIT(" ioc[%d] ROPE_CFG 0x%Lx ROPE_DBG 0x%Lx\n", diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c index 719b863bc20..828eb45062d 100644 --- a/drivers/parisc/superio.c +++ b/drivers/parisc/superio.c @@ -155,7 +155,7 @@ superio_init(struct pci_dev *pcidev) struct pci_dev *pdev = sio->lio_pdev; u16 word; - if (sio->suckyio_irq_enabled) + if (sio->suckyio_irq_enabled) return; BUG_ON(!pdev); @@ -194,7 +194,7 @@ superio_init(struct pci_dev *pcidev) request_region (sio->acpi_base, 0x1f, "acpi"); /* Enable the legacy I/O function */ - pci_read_config_word (pdev, PCI_COMMAND, &word); + pci_read_config_word (pdev, PCI_COMMAND, &word); word |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_IO; pci_write_config_word (pdev, PCI_COMMAND, word); diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index cba6c9eef28..61cb4b29f55 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -250,7 +250,7 @@ config M32R_CFC_NUM config PCMCIA_VRC4171 tristate "NEC VRC4171 Card Controllers support" - depends on VRC4171 && PCMCIA + depends on CPU_VR41XX && ISA && PCMCIA config PCMCIA_VRC4173 tristate "NEC VRC4173 CARDU support" diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index ae10d1eed65..48d3b3d30c2 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -236,11 +236,11 @@ static void pcmcia_check_driver(struct pcmcia_driver *p_drv) /** * pcmcia_load_firmware - load CIS from userspace if device-provided is broken * @dev - the pcmcia device which needs a CIS override - * @filename - requested filename in /lib/firmware/cis/ + * @filename - requested filename in /lib/firmware/ * * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if * the one provided by the card is broken. The firmware files reside in - * /lib/firmware/cis/ in userspace. + * /lib/firmware/ in userspace. */ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) { @@ -298,9 +298,6 @@ static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filenam * * Registers a PCMCIA driver with the PCMCIA bus core. */ -static int pcmcia_device_probe(struct device *dev); -static int pcmcia_device_remove(struct device * dev); - int pcmcia_register_driver(struct pcmcia_driver *driver) { if (!driver) @@ -400,7 +397,7 @@ static int pcmcia_device_probe(struct device * dev) * call which will then check whether there are two * pseudo devices, and if not, add the second one. */ - did = (struct pcmcia_device_id *) p_dev->dev.driver_data; + did = p_dev->dev.driver_data; if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) pcmcia_add_pseudo_device(p_dev->socket); @@ -448,7 +445,6 @@ static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *le return; } - static int pcmcia_device_remove(struct device * dev) { struct pcmcia_device *p_dev; @@ -463,7 +459,7 @@ static int pcmcia_device_remove(struct device * dev) * pseudo multi-function card, we need to unbind * all devices */ - did = (struct pcmcia_device_id *) p_dev->dev.driver_data; + did = p_dev->dev.driver_data; if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && (p_dev->socket->device_count != 0) && (p_dev->device_no == 0)) @@ -476,6 +472,8 @@ static int pcmcia_device_remove(struct device * dev) if (p_drv->remove) p_drv->remove(p_dev); + p_dev->dev_node = NULL; + /* check for proper unloading */ if (p_dev->_irq || p_dev->_io || p_dev->_locked) printk(KERN_INFO "pcmcia: driver %s did not release config properly\n", @@ -628,7 +626,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f } /* Add to the list in pcmcia_bus_socket */ - list_add_tail(&p_dev->socket_device_list, &s->devices_list); + list_add(&p_dev->socket_device_list, &s->devices_list); spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index 45063b4e5b7..3131bb0a009 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -88,7 +88,6 @@ static int alloc_io_space(struct pcmcia_socket *s, u_int attr, ioaddr_t *base, } if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { *base = s->io_offset | (*base & 0x0fff); - s->io[0].res->flags = (s->io[0].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); return 0; } /* Check for an already-allocated window that must conflict with @@ -209,7 +208,6 @@ int pccard_get_configuration_info(struct pcmcia_socket *s, if (!(s->state & SOCKET_PRESENT)) return CS_NO_CARD; - config->Function = p_dev->func; #ifdef CONFIG_CARDBUS if (s->state & SOCKET_CARDBUS) { @@ -223,14 +221,22 @@ int pccard_get_configuration_info(struct pcmcia_socket *s, config->AssignedIRQ = s->irq.AssignedIRQ; if (config->AssignedIRQ) config->Attributes |= CONF_ENABLE_IRQ; - config->BasePort1 = s->io[0].res->start; - config->NumPorts1 = s->io[0].res->end - config->BasePort1 + 1; + if (s->io[0].res) { + config->BasePort1 = s->io[0].res->start; + config->NumPorts1 = s->io[0].res->end - config->BasePort1 + 1; + } } return CS_SUCCESS; } #endif - c = (p_dev) ? p_dev->function_config : NULL; + if (p_dev) { + c = p_dev->function_config; + config->Function = p_dev->func; + } else { + c = NULL; + config->Function = 0; + } if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { config->Attributes = 0; @@ -947,7 +953,5 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev) { pcmcia_release_irq(p_dev, &p_dev->irq); if (&p_dev->win) pcmcia_release_window(p_dev->win); - - p_dev->dev_node = NULL; } EXPORT_SYMBOL(pcmcia_disable_device); |